./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.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_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/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 f08060dbae3398b272b543e174171c518a83b9b7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:06:25,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:06:25,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:06:25,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:06:25,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:06:25,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:06:25,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:06:25,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:06:25,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:06:25,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:06:25,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:06:25,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:06:25,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:06:25,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:06:25,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:06:25,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:06:25,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:06:25,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:06:25,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:06:25,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:06:25,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:06:25,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:06:25,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:06:25,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:06:25,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:06:25,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:06:25,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:06:25,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:06:25,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:06:25,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:06:25,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:06:25,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:06:25,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:06:25,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:06:25,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:06:25,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:06:25,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:06:25,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:06:25,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:06:25,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:06:25,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:06:25,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:06:25,900 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:06:25,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:06:25,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:06:25,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:06:25,904 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:06:25,904 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:06:25,904 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:06:25,905 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:06:25,905 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:06:25,905 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:06:25,907 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:06:25,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:06:25,908 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:06:25,908 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:06:25,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:06:25,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:06:25,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:06:25,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:06:25,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:06:25,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:06:25,910 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:06:25,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:06:25,910 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:06:25,911 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:06:25,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:06:25,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:06:25,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:06:25,912 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:06:25,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:06:25,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:06:25,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:06:25,915 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:06:25,917 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:06:25,917 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_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f08060dbae3398b272b543e174171c518a83b9b7 [2020-12-01 15:06:26,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:06:26,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:06:26,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:06:26,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:06:26,397 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:06:26,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2020-12-01 15:06:26,532 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/data/e843dafab/d8ee10b03cb648a391158796c42dc5de/FLAG22405d94b [2020-12-01 15:06:27,376 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:06:27,377 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2020-12-01 15:06:27,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/data/e843dafab/d8ee10b03cb648a391158796c42dc5de/FLAG22405d94b [2020-12-01 15:06:27,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/data/e843dafab/d8ee10b03cb648a391158796c42dc5de [2020-12-01 15:06:27,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:06:27,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:06:27,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:06:27,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:06:27,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:06:27,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:06:27" (1/1) ... [2020-12-01 15:06:27,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a97af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:27, skipping insertion in model container [2020-12-01 15:06:27,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:06:27" (1/1) ... [2020-12-01 15:06:27,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:06:27,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:06:28,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:06:28,175 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:06:28,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:06:28,373 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:06:28,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28 WrapperNode [2020-12-01 15:06:28,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:06:28,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:06:28,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:06:28,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:06:28,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... [2020-12-01 15:06:28,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... [2020-12-01 15:06:28,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:06:28,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:06:28,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:06:28,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:06:28,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... [2020-12-01 15:06:28,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... [2020-12-01 15:06:28,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... [2020-12-01 15:06:28,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... [2020-12-01 15:06:28,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... [2020-12-01 15:06:28,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... [2020-12-01 15:06:28,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... [2020-12-01 15:06:28,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:06:28,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:06:28,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:06:28,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:06:28,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/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 15:06:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:06:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:06:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:06:28,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:06:30,249 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:06:30,250 INFO L298 CfgBuilder]: Removed 356 assume(true) statements. [2020-12-01 15:06:30,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:30 BoogieIcfgContainer [2020-12-01 15:06:30,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:06:30,254 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:06:30,254 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:06:30,259 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:06:30,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:06:30,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:06:27" (1/3) ... [2020-12-01 15:06:30,263 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ec8a3ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:06:30, skipping insertion in model container [2020-12-01 15:06:30,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:06:30,263 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:28" (2/3) ... [2020-12-01 15:06:30,264 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ec8a3ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:06:30, skipping insertion in model container [2020-12-01 15:06:30,264 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:06:30,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:30" (3/3) ... [2020-12-01 15:06:30,266 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2020-12-01 15:06:30,328 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:06:30,328 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:06:30,328 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:06:30,328 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:06:30,329 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:06:30,329 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:06:30,329 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:06:30,329 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:06:30,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states. [2020-12-01 15:06:30,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-12-01 15:06:30,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:06:30,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:06:30,411 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:30,411 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:30,412 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:06:30,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states. [2020-12-01 15:06:30,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2020-12-01 15:06:30,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:06:30,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:06:30,426 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:30,427 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:30,434 INFO L794 eck$LassoCheckResult]: Stem: 62#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~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(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(77, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(101, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(116, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(104, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string55.base, #t~string55.offset, 1);call write~init~int(82, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(73, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(84, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 4 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(75, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 8#L-1true havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 202#L586true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 74#L594true main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 3#L175true assume 0 != main_~tmp~1; 25#L147true ~methAndRunningLastTime~0 := 0; 111#L51true havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, 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; 110#L62-1true [2020-12-01 15:06:30,435 INFO L796 eck$LassoCheckResult]: Loop: 110#L62-1true assume !false; 5#L610true assume test_~splverifierCounter~0 < 4; 61#L611true test_~tmp~5 := test_#t~nondet46;havoc test_#t~nondet46; 200#L619true assume !(0 != test_~tmp~5); 203#L619-1true test_~tmp___0~1 := test_#t~nondet47;havoc test_#t~nondet47; 134#L629true assume !(0 != test_~tmp___0~1); 114#L629-1true test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 60#L639true assume 0 != test_~tmp___2~0; 146#L645-2true assume !(0 != ~pumpRunning~0); 83#L781true assume !(0 != ~systemActive~0); 148#L788true havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 218#L712-5true __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 112#L62true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 110#L62-1true [2020-12-01 15:06:30,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:30,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-12-01 15:06:30,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:30,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075605461] [2020-12-01 15:06:30,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:30,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:31,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:31,123 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:06:31,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:31,126 INFO L82 PathProgramCache]: Analyzing trace with hash 9156236, now seen corresponding path program 1 times [2020-12-01 15:06:31,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:31,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127922245] [2020-12-01 15:06:31,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:31,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:31,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:31,163 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:06:31,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:31,165 INFO L82 PathProgramCache]: Analyzing trace with hash 842452742, now seen corresponding path program 1 times [2020-12-01 15:06:31,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:31,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106218286] [2020-12-01 15:06:31,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:06:31,388 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 15:06:31,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106218286] [2020-12-01 15:06:31,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:06:31,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:06:31,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085460021] [2020-12-01 15:06:31,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:06:31,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:06:31,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:06:31,518 INFO L87 Difference]: Start difference. First operand 229 states. Second operand 6 states. [2020-12-01 15:06:31,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:06:31,814 INFO L93 Difference]: Finished difference Result 226 states and 329 transitions. [2020-12-01 15:06:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:06:31,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 329 transitions. [2020-12-01 15:06:31,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2020-12-01 15:06:31,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 219 states and 322 transitions. [2020-12-01 15:06:31,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2020-12-01 15:06:31,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2020-12-01 15:06:31,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 322 transitions. [2020-12-01 15:06:31,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:06:31,851 INFO L692 BuchiCegarLoop]: Abstraction has 219 states and 322 transitions. [2020-12-01 15:06:31,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 322 transitions. [2020-12-01 15:06:31,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2020-12-01 15:06:31,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-12-01 15:06:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 322 transitions. [2020-12-01 15:06:31,930 INFO L715 BuchiCegarLoop]: Abstraction has 219 states and 322 transitions. [2020-12-01 15:06:31,930 INFO L595 BuchiCegarLoop]: Abstraction has 219 states and 322 transitions. [2020-12-01 15:06:31,930 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:06:31,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 322 transitions. [2020-12-01 15:06:31,934 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2020-12-01 15:06:31,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:06:31,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:06:31,936 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:31,936 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:31,937 INFO L794 eck$LassoCheckResult]: Stem: 564#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~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(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(77, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(101, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(116, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(104, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string55.base, #t~string55.offset, 1);call write~init~int(82, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(73, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(84, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 4 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(75, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 483#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 484#L586 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 585#L594 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 473#L175 assume 0 != main_~tmp~1; 474#L147 ~methAndRunningLastTime~0 := 0; 509#L51 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, 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; 569#L62-1 [2020-12-01 15:06:31,937 INFO L796 eck$LassoCheckResult]: Loop: 569#L62-1 assume !false; 477#L610 assume test_~splverifierCounter~0 < 4; 478#L611 test_~tmp~5 := test_#t~nondet46;havoc test_#t~nondet46; 563#L619 assume !(0 != test_~tmp~5); 494#L619-1 test_~tmp___0~1 := test_#t~nondet47;havoc test_#t~nondet47; 653#L629 assume !(0 != test_~tmp___0~1); 572#L629-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 560#L639 assume 0 != test_~tmp___2~0; 562#L645-2 assume !(0 != ~pumpRunning~0); 546#L781 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 599#L865 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret61, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 669#L839-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 533#L813-3 assume !(0 == ~pumpRunning~0); 525#L788 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 665#L712-5 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 629#L62 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 569#L62-1 [2020-12-01 15:06:31,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:31,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-12-01 15:06:31,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:31,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704275145] [2020-12-01 15:06:31,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:32,029 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:32,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:32,166 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:06:32,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:32,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1236370743, now seen corresponding path program 1 times [2020-12-01 15:06:32,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:32,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118512375] [2020-12-01 15:06:32,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:06:32,215 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 15:06:32,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118512375] [2020-12-01 15:06:32,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:06:32,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:06:32,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607731332] [2020-12-01 15:06:32,222 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:06:32,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:06:32,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:06:32,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:06:32,226 INFO L87 Difference]: Start difference. First operand 219 states and 322 transitions. cyclomatic complexity: 105 Second operand 3 states. [2020-12-01 15:06:32,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:06:32,409 INFO L93 Difference]: Finished difference Result 218 states and 304 transitions. [2020-12-01 15:06:32,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:06:32,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 218 states and 304 transitions. [2020-12-01 15:06:32,414 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2020-12-01 15:06:32,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 218 states to 218 states and 304 transitions. [2020-12-01 15:06:32,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 218 [2020-12-01 15:06:32,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 218 [2020-12-01 15:06:32,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 218 states and 304 transitions. [2020-12-01 15:06:32,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:06:32,423 INFO L692 BuchiCegarLoop]: Abstraction has 218 states and 304 transitions. [2020-12-01 15:06:32,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states and 304 transitions. [2020-12-01 15:06:32,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-12-01 15:06:32,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-12-01 15:06:32,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 304 transitions. [2020-12-01 15:06:32,439 INFO L715 BuchiCegarLoop]: Abstraction has 218 states and 304 transitions. [2020-12-01 15:06:32,439 INFO L595 BuchiCegarLoop]: Abstraction has 218 states and 304 transitions. [2020-12-01 15:06:32,439 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:06:32,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 304 transitions. [2020-12-01 15:06:32,442 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2020-12-01 15:06:32,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:06:32,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:06:32,444 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:32,445 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:32,445 INFO L794 eck$LassoCheckResult]: Stem: 1056#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~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(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(77, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(101, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(116, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(104, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string55.base, #t~string55.offset, 1);call write~init~int(82, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(73, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(84, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 4 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(75, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 941#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 942#L586 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1074#L594 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 916#L175 assume 0 != main_~tmp~1; 917#L147 ~methAndRunningLastTime~0 := 0; 935#L51 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, 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; 934#L62-1 [2020-12-01 15:06:32,446 INFO L796 eck$LassoCheckResult]: Loop: 934#L62-1 assume !false; 927#L610 assume test_~splverifierCounter~0 < 4; 928#L611 test_~tmp~5 := test_#t~nondet46;havoc test_#t~nondet46; 1053#L619 assume !(0 != test_~tmp~5); 963#L619-1 test_~tmp___0~1 := test_#t~nondet47;havoc test_#t~nondet47; 982#L629 assume !(0 != test_~tmp___0~1); 943#L629-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 944#L639 assume 0 != test_~tmp___2~0; 1005#L645-2 assume !(0 != ~pumpRunning~0); 1006#L781 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 1035#L865 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret61, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 1036#L839-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1013#L813-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret81, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1014#L752-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1033#L757-3 isHighWaterLevel_#t~ret81 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret81;havoc isHighWaterLevel_#t~ret81; 964#L984-9 assume 0 != isHighWaterLevel_~tmp~10;isHighWaterLevel_~tmp___0~2 := 0; 925#L984-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 926#L990-3 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 1064#L817-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1007#L788 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1015#L712-5 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 936#L62 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 934#L62-1 [2020-12-01 15:06:32,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:32,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-12-01 15:06:32,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:32,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297316638] [2020-12-01 15:06:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:32,536 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:32,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:32,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:06:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:32,666 INFO L82 PathProgramCache]: Analyzing trace with hash -2082517259, now seen corresponding path program 1 times [2020-12-01 15:06:32,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:32,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322337068] [2020-12-01 15:06:32,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:32,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:32,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:32,700 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:06:32,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:32,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1345265595, now seen corresponding path program 1 times [2020-12-01 15:06:32,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:32,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936894819] [2020-12-01 15:06:32,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:32,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:32,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:32,830 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:06:33,062 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-12-01 15:08:21,215 WARN L197 SmtUtils]: Spent 1.80 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-12-01 15:09:22,428 WARN L197 SmtUtils]: Spent 1.02 m on a formula simplification that was a NOOP. DAG size: 435 [2020-12-01 15:09:22,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:09:22 BoogieIcfgContainer [2020-12-01 15:09:22,690 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:09:22,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:09:22,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:09:22,691 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:09:22,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:30" (3/4) ... [2020-12-01 15:09:22,694 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 15:09:22,819 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dc1d9c2b-4c62-43ab-b9e2-8fd0519c30f9/bin/uautomizer/witness.graphml [2020-12-01 15:09:22,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:09:22,821 INFO L168 Benchmark]: Toolchain (without parser) took 175160.05 ms. Allocated memory was 104.9 MB in the beginning and 180.4 MB in the end (delta: 75.5 MB). Free memory was 75.4 MB in the beginning and 120.1 MB in the end (delta: -44.7 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:22,821 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 104.9 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:22,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.66 ms. Allocated memory is still 104.9 MB. Free memory was 75.2 MB in the beginning and 69.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:22,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 160.25 ms. Allocated memory is still 104.9 MB. Free memory was 69.5 MB in the beginning and 64.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:22,823 INFO L168 Benchmark]: Boogie Preprocessor took 144.85 ms. Allocated memory is still 104.9 MB. Free memory was 64.1 MB in the beginning and 59.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:22,824 INFO L168 Benchmark]: RCFGBuilder took 1570.43 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 59.9 MB in the beginning and 83.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:22,825 INFO L168 Benchmark]: BuchiAutomizer took 172435.69 ms. Allocated memory was 138.4 MB in the beginning and 180.4 MB in the end (delta: 41.9 MB). Free memory was 83.5 MB in the beginning and 123.0 MB in the end (delta: -39.5 MB). Peak memory consumption was 80.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:22,826 INFO L168 Benchmark]: Witness Printer took 129.07 ms. Allocated memory is still 180.4 MB. Free memory was 123.0 MB in the beginning and 120.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:22,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 104.9 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 712.66 ms. Allocated memory is still 104.9 MB. Free memory was 75.2 MB in the beginning and 69.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 160.25 ms. Allocated memory is still 104.9 MB. Free memory was 69.5 MB in the beginning and 64.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 144.85 ms. Allocated memory is still 104.9 MB. Free memory was 64.1 MB in the beginning and 59.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1570.43 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 59.9 MB in the beginning and 83.5 MB in the end (delta: -23.6 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 172435.69 ms. Allocated memory was 138.4 MB in the beginning and 180.4 MB in the end (delta: 41.9 MB). Free memory was 83.5 MB in the beginning and 123.0 MB in the end (delta: -39.5 MB). Peak memory consumption was 80.4 MB. Max. memory is 16.1 GB. * Witness Printer took 129.07 ms. Allocated memory is still 180.4 MB. Free memory was 123.0 MB in the beginning and 120.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 218 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 172.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 171.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 219 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 553 SDtfs, 1470 SDslu, 83 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 609]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31770} State at position 1 is {NULL=0, NULL=54959, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38409f60=0, NULL=31770, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63879461=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78eacab0=52, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a6f73dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@389c0f11=0, NULL=0, methaneLevelCritical=0, NULL=54963, tmp=0, NULL=0, NULL=54944, NULL=54946, tmp___1=0, NULL=31775, NULL=0, NULL=54958, cleanupTimeShifts=4, NULL=31773, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@221f66d7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12c60144=0, waterLevel=1, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@92fd90b=0, head=0, pumpRunning=0, retValue_acc=1, NULL=31772, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d557166=0, NULL=54947, tmp=1, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=54953, tmp___0=0, methAndRunningLastTime=0, NULL=31771, NULL=54960, head=0, NULL=0, NULL=54956, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1112f2a6=0, NULL=0, NULL=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16d40f75=0, tmp=0, retValue_acc=0, NULL=0, NULL=54949, NULL=54945, NULL=54961, tmp___0=0, NULL=0, NULL=54962, NULL=54957, NULL=0, NULL=0, NULL=54965, NULL=54951, tmp=0, NULL=54950, NULL=0, NULL=0, systemActive=1, NULL=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=54955, \result=0, NULL=54952, NULL=0, retValue_acc=1, tmp___0=0, NULL=54954, tmp___2=52, tmp=1, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=54966, NULL=54964, tmp=0, NULL=31774, NULL=54948} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L45] int methAndRunningLastTime ; [L84] int cleanupTimeShifts = 4; [L358] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L669] int waterLevel = 1; [L670] int methaneLevelCritical = 0; [L774] int pumpRunning = 0; [L775] int systemActive = 1; [L166] int retValue_acc ; [L167] int tmp ; [L590] int retValue_acc ; [L593] retValue_acc = 1 [L594] return (retValue_acc); [L173] tmp = valid_product() [L175] COND TRUE \read(tmp) [L50] methAndRunningLastTime = 0 [L600] int splverifierCounter ; [L601] int tmp ; [L602] int tmp___0 ; [L603] int tmp___1 ; [L604] int tmp___2 ; [L607] splverifierCounter = 0 Loop: [L609] COND TRUE 1 [L611] COND TRUE splverifierCounter < 4 [L617] tmp = __VERIFIER_nondet_int() [L619] COND FALSE !(\read(tmp)) [L627] tmp___0 = __VERIFIER_nondet_int() [L629] COND FALSE !(\read(tmp___0)) [L637] tmp___2 = __VERIFIER_nondet_int() [L639] COND TRUE \read(tmp___2) [L781] COND FALSE !(\read(pumpRunning)) [L788] COND TRUE \read(systemActive) [L862] int tmp ; [L865] COND FALSE !(\read(pumpRunning)) [L836] int tmp ; [L839] COND FALSE !(\read(pumpRunning)) [L810] int tmp ; [L813] COND TRUE ! pumpRunning [L976] int retValue_acc ; [L977] int tmp ; [L978] int tmp___0 ; [L749] int retValue_acc ; [L752] COND TRUE waterLevel < 2 [L753] retValue_acc = 1 [L754] return (retValue_acc); [L982] tmp = isHighWaterSensorDry() [L984] COND TRUE \read(tmp) [L985] tmp___0 = 0 [L989] retValue_acc = tmp___0 [L990] return (retValue_acc); [L815] tmp = isHighWaterLevel() [L817] COND FALSE !(\read(tmp)) [L55] int tmp ; [L56] int tmp___0 ; [L708] int retValue_acc ; [L711] retValue_acc = methaneLevelCritical [L712] return (retValue_acc); [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...