./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product13.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_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product13.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/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 fb700318d56e75ca58c97ec0b4d91c744aa1d288 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:11:31,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:11:31,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:11:31,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:11:31,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:11:31,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:11:31,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:11:31,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:11:31,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:11:31,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:11:31,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:11:31,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:11:31,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:11:31,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:11:31,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:11:31,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:11:31,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:11:31,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:11:31,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:11:31,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:11:31,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:11:31,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:11:31,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:11:31,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:11:31,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:11:31,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:11:31,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:11:31,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:11:31,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:11:31,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:11:31,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:11:31,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:11:31,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:11:31,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:11:31,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:11:31,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:11:31,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:11:31,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:11:31,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:11:31,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:11:31,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:11:31,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:11:31,828 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:11:31,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:11:31,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:11:31,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:11:31,835 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:11:31,836 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:11:31,836 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:11:31,836 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:11:31,837 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:11:31,837 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:11:31,839 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:11:31,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:11:31,839 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:11:31,840 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:11:31,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:11:31,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:11:31,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:11:31,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:11:31,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:11:31,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:11:31,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:11:31,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:11:31,843 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:11:31,843 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:11:31,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:11:31,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:11:31,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:11:31,845 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:11:31,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:11:31,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:11:31,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:11:31,848 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:11:31,852 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:11:31,852 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_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb700318d56e75ca58c97ec0b4d91c744aa1d288 [2020-11-30 00:11:32,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:11:32,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:11:32,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:11:32,324 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:11:32,330 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:11:32,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product13.cil.c [2020-11-30 00:11:32,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/data/91ad6f92e/df74ffc340224863ab1a718ad92ff466/FLAG409823ec3 [2020-11-30 00:11:33,210 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:11:33,212 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/sv-benchmarks/c/product-lines/minepump_spec5_product13.cil.c [2020-11-30 00:11:33,225 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/data/91ad6f92e/df74ffc340224863ab1a718ad92ff466/FLAG409823ec3 [2020-11-30 00:11:33,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/data/91ad6f92e/df74ffc340224863ab1a718ad92ff466 [2020-11-30 00:11:33,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:11:33,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:11:33,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:11:33,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:11:33,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:11:33,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:11:33" (1/1) ... [2020-11-30 00:11:33,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b40878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:33, skipping insertion in model container [2020-11-30 00:11:33,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:11:33" (1/1) ... [2020-11-30 00:11:33,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:11:33,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:11:33,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:11:34,012 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:11:34,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:11:34,172 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:11:34,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34 WrapperNode [2020-11-30 00:11:34,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:11:34,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:11:34,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:11:34,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:11:34,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... [2020-11-30 00:11:34,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... [2020-11-30 00:11:34,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:11:34,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:11:34,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:11:34,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:11:34,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... [2020-11-30 00:11:34,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... [2020-11-30 00:11:34,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... [2020-11-30 00:11:34,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... [2020-11-30 00:11:34,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... [2020-11-30 00:11:34,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... [2020-11-30 00:11:34,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... [2020-11-30 00:11:34,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:11:34,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:11:34,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:11:34,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:11:34,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/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 00:11:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:11:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:11:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:11:34,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:11:35,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:11:35,824 INFO L298 CfgBuilder]: Removed 116 assume(true) statements. [2020-11-30 00:11:35,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:11:35 BoogieIcfgContainer [2020-11-30 00:11:35,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:11:35,830 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:11:35,830 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:11:35,835 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:11:35,837 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:11:35,837 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:11:33" (1/3) ... [2020-11-30 00:11:35,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ac4288d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:11:35, skipping insertion in model container [2020-11-30 00:11:35,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:11:35,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:34" (2/3) ... [2020-11-30 00:11:35,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ac4288d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:11:35, skipping insertion in model container [2020-11-30 00:11:35,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:11:35,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:11:35" (3/3) ... [2020-11-30 00:11:35,845 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product13.cil.c [2020-11-30 00:11:35,928 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:11:35,929 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:11:35,929 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:11:35,929 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:11:35,929 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:11:35,930 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:11:35,930 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:11:35,930 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:11:35,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-30 00:11:36,020 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-30 00:11:36,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:11:36,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:11:36,035 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:36,035 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:36,035 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:11:36,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2020-11-30 00:11:36,042 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-30 00:11:36,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:11:36,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:11:36,044 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:36,044 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:36,052 INFO L794 eck$LassoCheckResult]: Stem: 29#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 6#L-1true havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 67#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 79#L75true main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 64#L678true assume 0 != main_~tmp~4; 71#L653true ~switchedOnBeforeTS~0 := 0; 62#L455true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 35#L476-1true [2020-11-30 00:11:36,053 INFO L796 eck$LassoCheckResult]: Loop: 35#L476-1true assume !false; 80#L858true assume test_~splverifierCounter~0 < 4; 13#L859true test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 19#L867true assume !(0 != test_~tmp~7); 21#L867-1true test_~tmp___0~1 := test_#t~nondet77;havoc test_#t~nondet77; 3#L877true assume !(0 != test_~tmp___0~1); 4#L877-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 72#L887true assume 0 != test_~tmp___2~0; 36#L893-2true havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 66#L806true __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 34#L465true assume !(0 != ~pumpRunning~0); 75#L704true assume !(0 != ~systemActive~0); 63#L711true havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 22#L578true __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 32#L476true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 35#L476-1true [2020-11-30 00:11:36,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:36,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-30 00:11:36,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:36,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117421902] [2020-11-30 00:11:36,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:36,472 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:36,681 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:36,755 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:11:36,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:36,761 INFO L82 PathProgramCache]: Analyzing trace with hash 93981422, now seen corresponding path program 1 times [2020-11-30 00:11:36,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:36,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212137214] [2020-11-30 00:11:36,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:36,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:36,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:36,812 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:11:36,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:36,820 INFO L82 PathProgramCache]: Analyzing trace with hash 2028006632, now seen corresponding path program 1 times [2020-11-30 00:11:36,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:36,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020265955] [2020-11-30 00:11:36,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:37,091 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 00:11:37,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020265955] [2020-11-30 00:11:37,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:11:37,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:11:37,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051583198] [2020-11-30 00:11:37,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:11:37,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:11:37,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:11:37,295 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 6 states. [2020-11-30 00:11:37,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:11:37,846 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2020-11-30 00:11:37,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:11:37,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 100 transitions. [2020-11-30 00:11:37,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-30 00:11:37,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2020-11-30 00:11:37,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2020-11-30 00:11:37,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2020-11-30 00:11:37,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2020-11-30 00:11:37,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:11:37,869 INFO L691 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2020-11-30 00:11:37,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2020-11-30 00:11:37,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-30 00:11:37,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-30 00:11:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2020-11-30 00:11:37,911 INFO L714 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2020-11-30 00:11:37,912 INFO L594 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2020-11-30 00:11:37,912 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:11:37,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2020-11-30 00:11:37,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-30 00:11:37,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:11:37,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:11:37,916 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:37,917 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:37,917 INFO L794 eck$LassoCheckResult]: Stem: 206#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 175#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 176#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 238#L75 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 236#L678 assume 0 != main_~tmp~4; 237#L653 ~switchedOnBeforeTS~0 := 0; 235#L455 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 212#L476-1 [2020-11-30 00:11:37,917 INFO L796 eck$LassoCheckResult]: Loop: 212#L476-1 assume !false; 216#L858 assume test_~splverifierCounter~0 < 4; 185#L859 test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 186#L867 assume !(0 != test_~tmp~7); 190#L867-1 test_~tmp___0~1 := test_#t~nondet77;havoc test_#t~nondet77; 171#L877 assume !(0 != test_~tmp___0~1); 173#L877-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 174#L887 assume 0 != test_~tmp___2~0; 210#L893-2 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 217#L806 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 215#L465 assume !(0 != ~pumpRunning~0); 208#L704 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 229#L736 assume !(0 != ~pumpRunning~0); 224#L711 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 194#L578 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 195#L476 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 212#L476-1 [2020-11-30 00:11:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:37,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-30 00:11:37,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:37,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420184271] [2020-11-30 00:11:37,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:38,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:38,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:38,123 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:11:38,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:38,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1402071739, now seen corresponding path program 1 times [2020-11-30 00:11:38,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:38,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803414222] [2020-11-30 00:11:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:38,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:38,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:38,143 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:11:38,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:38,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1576832373, now seen corresponding path program 1 times [2020-11-30 00:11:38,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:38,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960790569] [2020-11-30 00:11:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:38,266 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 00:11:38,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960790569] [2020-11-30 00:11:38,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:11:38,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:11:38,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851525877] [2020-11-30 00:11:38,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:11:38,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:11:38,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:11:38,393 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand 5 states. [2020-11-30 00:11:38,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:11:38,734 INFO L93 Difference]: Finished difference Result 188 states and 255 transitions. [2020-11-30 00:11:38,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:11:38,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 255 transitions. [2020-11-30 00:11:38,750 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2020-11-30 00:11:38,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 188 states and 255 transitions. [2020-11-30 00:11:38,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2020-11-30 00:11:38,763 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2020-11-30 00:11:38,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 255 transitions. [2020-11-30 00:11:38,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:11:38,769 INFO L691 BuchiCegarLoop]: Abstraction has 188 states and 255 transitions. [2020-11-30 00:11:38,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 255 transitions. [2020-11-30 00:11:38,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 129. [2020-11-30 00:11:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-30 00:11:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2020-11-30 00:11:38,788 INFO L714 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2020-11-30 00:11:38,789 INFO L594 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2020-11-30 00:11:38,789 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:11:38,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 172 transitions. [2020-11-30 00:11:38,794 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2020-11-30 00:11:38,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:11:38,794 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:11:38,795 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:38,795 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:38,795 INFO L794 eck$LassoCheckResult]: Stem: 479#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 447#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 448#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 526#L75 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 524#L678 assume 0 != main_~tmp~4; 525#L653 ~switchedOnBeforeTS~0 := 0; 523#L455 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 490#L476-1 [2020-11-30 00:11:38,796 INFO L796 eck$LassoCheckResult]: Loop: 490#L476-1 assume !false; 491#L858 assume test_~splverifierCounter~0 < 4; 455#L859 test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 456#L867 assume !(0 != test_~tmp~7); 462#L867-1 test_~tmp___0~1 := test_#t~nondet77;havoc test_#t~nondet77; 443#L877 assume !(0 != test_~tmp___0~1); 445#L877-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 446#L887 assume 0 != test_~tmp___2~0; 565#L893-2 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 564#L806 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 563#L465 assume !(0 != ~pumpRunning~0); 562#L704 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 559#L736 assume !(0 != ~pumpRunning~0); 522#L711 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 465#L578 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 466#L476 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 484#L806-1 __utac_acc__Specification5_spec__3_#t~ret45 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 515#L480 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 490#L476-1 [2020-11-30 00:11:38,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:38,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-30 00:11:38,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:38,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45692891] [2020-11-30 00:11:38,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:38,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:38,921 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:38,936 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:11:38,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:38,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1228773472, now seen corresponding path program 1 times [2020-11-30 00:11:38,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:38,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292214207] [2020-11-30 00:11:38,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:38,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:38,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:38,961 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:11:38,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:38,962 INFO L82 PathProgramCache]: Analyzing trace with hash 787528742, now seen corresponding path program 1 times [2020-11-30 00:11:38,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:11:38,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473843951] [2020-11-30 00:11:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:11:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:39,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:11:39,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:11:39,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:11:39,299 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-30 00:13:28,080 WARN L193 SmtUtils]: Spent 1.81 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-30 00:14:41,579 WARN L193 SmtUtils]: Spent 1.22 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-30 00:14:41,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:14:41 BoogieIcfgContainer [2020-11-30 00:14:41,741 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:14:41,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:14:41,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:14:41,742 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:14:41,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:11:35" (3/4) ... [2020-11-30 00:14:41,746 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:14:41,807 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5332004b-6fa3-426a-9b19-f70c7f5f3a0e/bin/uautomizer/witness.graphml [2020-11-30 00:14:41,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:14:41,809 INFO L168 Benchmark]: Toolchain (without parser) took 188340.52 ms. Allocated memory was 88.1 MB in the beginning and 148.9 MB in the end (delta: 60.8 MB). Free memory was 56.2 MB in the beginning and 63.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:41,810 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 88.1 MB. Free memory was 45.8 MB in the beginning and 45.7 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:14:41,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.07 ms. Allocated memory is still 88.1 MB. Free memory was 55.8 MB in the beginning and 55.6 MB in the end (delta: 252.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:41,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 146.91 ms. Allocated memory is still 88.1 MB. Free memory was 55.6 MB in the beginning and 52.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:41,812 INFO L168 Benchmark]: Boogie Preprocessor took 61.02 ms. Allocated memory is still 88.1 MB. Free memory was 52.8 MB in the beginning and 50.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:41,813 INFO L168 Benchmark]: RCFGBuilder took 1443.09 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 50.7 MB in the beginning and 57.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:41,814 INFO L168 Benchmark]: BuchiAutomizer took 185910.85 ms. Allocated memory was 115.3 MB in the beginning and 148.9 MB in the end (delta: 33.6 MB). Free memory was 57.2 MB in the beginning and 66.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:41,815 INFO L168 Benchmark]: Witness Printer took 66.00 ms. Allocated memory is still 148.9 MB. Free memory was 66.0 MB in the beginning and 63.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:41,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 88.1 MB. Free memory was 45.8 MB in the beginning and 45.7 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 703.07 ms. Allocated memory is still 88.1 MB. Free memory was 55.8 MB in the beginning and 55.6 MB in the end (delta: 252.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 146.91 ms. Allocated memory is still 88.1 MB. Free memory was 55.6 MB in the beginning and 52.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.02 ms. Allocated memory is still 88.1 MB. Free memory was 52.8 MB in the beginning and 50.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1443.09 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 50.7 MB in the beginning and 57.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 185910.85 ms. Allocated memory was 115.3 MB in the beginning and 148.9 MB in the end (delta: 33.6 MB). Free memory was 57.2 MB in the beginning and 66.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 61.8 MB. Max. memory is 16.1 GB. * Witness Printer took 66.00 ms. Allocated memory is still 148.9 MB. Free memory was 66.0 MB in the beginning and 63.1 MB in the end (delta: 3.0 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 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 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 185.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 184.6s. Construction of modules took 0.5s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 59 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 238 SDtfs, 568 SDslu, 274 SDs, 0 SdLazy, 75 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 857]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=26378} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23bd0489=0, NULL=0, NULL=0, NULL=26399, NULL=0, NULL=26378, NULL=0, NULL=26394, NULL=0, NULL=26391, retValue_acc=0, NULL=26393, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26964d43=0, NULL=26390, tmp=1, NULL=0, NULL=0, tmp=0, NULL=0, tmp___1=0, NULL=26385, NULL=0, NULL=0, NULL=26384, NULL=26389, NULL=26405, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=26387, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6da12b30=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70cfc1a4=0, \result=0, NULL=26404, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e225854=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51694ca7=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d220215=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=26396, \result=1, NULL=0, NULL=0, NULL=0, NULL=26400, NULL=0, NULL=0, NULL=26382, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=26401, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=26388, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c16d92b=0, NULL=26397, NULL=26398, NULL=0, NULL=26395, NULL=0, NULL=26381, retValue_acc=1, retValue_acc=1, tmp___2=64, NULL=0, NULL=26386, tmp___0=0, NULL=26383, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d9225c6=0, NULL=26392, NULL=26380, head=0, NULL=0, NULL=0, tmp=0, NULL=26379, NULL=0, NULL=0, NULL=0, NULL=26403, retValue_acc=0, NULL=26402, NULL=26406} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L449] int switchedOnBeforeTS ; [L503] int waterLevel = 1; [L504] int methaneLevelCritical = 0; [L592] int cleanupTimeShifts = 4; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L669] int retValue_acc ; [L670] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L676] tmp = valid_product() [L678] COND TRUE \read(tmp) [L454] switchedOnBeforeTS = 0 [L848] int splverifierCounter ; [L849] int tmp ; [L850] int tmp___0 ; [L851] int tmp___1 ; [L852] int tmp___2 ; [L855] splverifierCounter = 0 Loop: [L857] COND TRUE 1 [L859] COND TRUE splverifierCounter < 4 [L865] tmp = __VERIFIER_nondet_int() [L867] COND FALSE !(\read(tmp)) [L875] tmp___0 = __VERIFIER_nondet_int() [L877] COND FALSE !(\read(tmp___0)) [L885] tmp___2 = __VERIFIER_nondet_int() [L887] COND TRUE \read(tmp___2) [L802] int retValue_acc ; [L805] retValue_acc = pumpRunning [L806] return (retValue_acc); [L463] switchedOnBeforeTS = isPumpRunning() [L704] COND FALSE !(\read(pumpRunning)) [L711] COND TRUE \read(systemActive) [L733] int tmp ; [L736] COND FALSE !(\read(pumpRunning)) [L469] int tmp ; [L470] int tmp___0 ; [L574] int retValue_acc ; [L577] retValue_acc = waterLevel [L578] return (retValue_acc); [L474] tmp = getWaterLevel() [L476] COND TRUE tmp != 2 [L802] int retValue_acc ; [L805] retValue_acc = pumpRunning [L806] return (retValue_acc); [L478] tmp___0 = isPumpRunning() [L480] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...