./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product50.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_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/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 9f33e15e0937d430cb63c24d59de4b6438b3be32 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 [2020-11-29 23:40:00,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:40:00,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:40:00,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:40:00,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:40:00,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:40:00,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:40:00,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:40:00,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:40:00,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:40:00,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:40:00,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:40:00,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:40:00,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:40:00,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:40:00,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:40:00,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:40:00,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:40:00,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:40:00,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:40:00,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:40:00,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:40:00,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:40:00,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:40:00,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:40:00,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:40:00,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:40:00,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:40:00,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:40:00,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:40:00,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:40:00,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:40:00,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:40:00,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:40:00,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:40:00,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:40:00,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:40:00,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:40:00,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:40:00,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:40:00,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:40:00,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:40:00,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:40:00,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:40:00,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:40:00,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:40:00,918 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:40:00,918 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:40:00,918 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:40:00,919 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:40:00,919 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:40:00,919 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:40:00,920 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:40:00,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:40:00,920 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:40:00,921 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:40:00,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:40:00,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:40:00,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:40:00,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:40:00,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:40:00,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:40:00,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:40:00,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:40:00,922 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:40:00,922 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:40:00,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:40:00,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:40:00,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:40:00,923 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:40:00,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:40:00,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:40:00,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:40:00,925 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:40:00,927 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:40:00,927 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_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f33e15e0937d430cb63c24d59de4b6438b3be32 [2020-11-29 23:40:01,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:40:01,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:40:01,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:40:01,232 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:40:01,233 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:40:01,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2020-11-29 23:40:01,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/data/ee96bf404/30ba4dc43ef54002bd90defd46a6258b/FLAG7b8dacead [2020-11-29 23:40:01,825 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:40:01,825 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2020-11-29 23:40:01,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/data/ee96bf404/30ba4dc43ef54002bd90defd46a6258b/FLAG7b8dacead [2020-11-29 23:40:02,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/data/ee96bf404/30ba4dc43ef54002bd90defd46a6258b [2020-11-29 23:40:02,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:40:02,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:40:02,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:40:02,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:40:02,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:40:02,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e8702f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02, skipping insertion in model container [2020-11-29 23:40:02,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:40:02,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:40:02,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:40:02,547 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:40:02,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:40:02,664 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:40:02,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02 WrapperNode [2020-11-29 23:40:02,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:40:02,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:40:02,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:40:02,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:40:02,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:40:02,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:40:02,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:40:02,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:40:02,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... [2020-11-29 23:40:02,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:40:02,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:40:02,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:40:02,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:40:02,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/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 [2020-11-29 23:40:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:40:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:40:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:40:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:40:03,849 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:40:03,850 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-11-29 23:40:03,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:03 BoogieIcfgContainer [2020-11-29 23:40:03,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:40:03,853 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:40:03,853 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:40:03,856 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:40:03,857 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:40:03,857 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:40:02" (1/3) ... [2020-11-29 23:40:03,859 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39834edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:40:03, skipping insertion in model container [2020-11-29 23:40:03,859 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:40:03,859 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:40:02" (2/3) ... [2020-11-29 23:40:03,859 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39834edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:40:03, skipping insertion in model container [2020-11-29 23:40:03,859 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:40:03,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:03" (3/3) ... [2020-11-29 23:40:03,861 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2020-11-29 23:40:03,906 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:40:03,906 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:40:03,906 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:40:03,906 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:40:03,906 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:40:03,906 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:40:03,906 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:40:03,907 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:40:03,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 121 states. [2020-11-29 23:40:03,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-29 23:40:03,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:40:03,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:40:03,953 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:03,953 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:03,953 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:40:03,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 121 states. [2020-11-29 23:40:03,961 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2020-11-29 23:40:03,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:40:03,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:40:03,962 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:03,962 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:03,968 INFO L794 eck$LassoCheckResult]: Stem: 66#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 10#L-1true havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 30#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; 42#L75true main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 21#L169true assume 0 != main_~tmp~0; 58#L143true ~methAndRunningLastTime~0 := 0; 113#L192true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 112#L203-1true [2020-11-29 23:40:03,969 INFO L796 eck$LassoCheckResult]: Loop: 112#L203-1true assume !false; 12#L552true assume test_~splverifierCounter~0 < 4; 64#L553true test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 91#L561true assume !(0 != test_~tmp~6); 93#L561-1true test_~tmp___0~3 := test_#t~nondet43;havoc test_#t~nondet43; 22#L571true assume !(0 != test_~tmp___0~3); 23#L571-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 57#L581true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 63#L589-2true assume !(0 != ~pumpRunning~0); 6#L343true assume !(0 != ~systemActive~0); 40#L350true havoc __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_#t~ret10, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 35#L273true __utac_acc__Specification2_spec__2_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret9;havoc __utac_acc__Specification2_spec__2_#t~ret9; 114#L203true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 112#L203-1true [2020-11-29 23:40:03,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:03,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 23:40:03,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:03,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960629715] [2020-11-29 23:40:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:04,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:04,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:04,406 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:40:04,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:04,411 INFO L82 PathProgramCache]: Analyzing trace with hash 5462157, now seen corresponding path program 1 times [2020-11-29 23:40:04,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:04,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564595465] [2020-11-29 23:40:04,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:40:04,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:04,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564595465] [2020-11-29 23:40:04,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:40:04,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:40:04,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624306723] [2020-11-29 23:40:04,468 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:40:04,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:40:04,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:40:04,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:40:04,490 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 3 states. [2020-11-29 23:40:04,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:40:04,561 INFO L93 Difference]: Finished difference Result 118 states and 171 transitions. [2020-11-29 23:40:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:40:04,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 171 transitions. [2020-11-29 23:40:04,571 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 23:40:04,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 111 states and 163 transitions. [2020-11-29 23:40:04,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2020-11-29 23:40:04,579 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 111 [2020-11-29 23:40:04,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 163 transitions. [2020-11-29 23:40:04,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:40:04,581 INFO L691 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2020-11-29 23:40:04,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 163 transitions. [2020-11-29 23:40:04,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-11-29 23:40:04,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-29 23:40:04,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2020-11-29 23:40:04,615 INFO L714 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2020-11-29 23:40:04,615 INFO L594 BuchiCegarLoop]: Abstraction has 111 states and 163 transitions. [2020-11-29 23:40:04,615 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:40:04,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 163 transitions. [2020-11-29 23:40:04,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2020-11-29 23:40:04,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:40:04,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:40:04,626 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:04,626 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:04,627 INFO L794 eck$LassoCheckResult]: Stem: 333#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 261#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 262#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; 295#L75 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 281#L169 assume 0 != main_~tmp~0; 282#L143 ~methAndRunningLastTime~0 := 0; 324#L192 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 251#L203-1 [2020-11-29 23:40:04,627 INFO L796 eck$LassoCheckResult]: Loop: 251#L203-1 assume !false; 265#L552 assume test_~splverifierCounter~0 < 4; 266#L553 test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 331#L561 assume !(0 != test_~tmp~6); 321#L561-1 test_~tmp___0~3 := test_#t~nondet43;havoc test_#t~nondet43; 283#L571 assume !(0 != test_~tmp___0~3); 285#L571-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 286#L581 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 323#L589-2 assume !(0 != ~pumpRunning~0); 254#L343 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 255#L401 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 306#L375-1 assume !(0 == ~pumpRunning~0); 304#L350 havoc __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_#t~ret10, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 301#L273 __utac_acc__Specification2_spec__2_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret9;havoc __utac_acc__Specification2_spec__2_#t~ret9; 302#L203 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 251#L203-1 [2020-11-29 23:40:04,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:04,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 23:40:04,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:04,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141999884] [2020-11-29 23:40:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:04,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:04,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:04,850 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:40:04,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:04,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1686527797, now seen corresponding path program 1 times [2020-11-29 23:40:04,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:04,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356536772] [2020-11-29 23:40:04,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:40:04,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:40:04,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356536772] [2020-11-29 23:40:04,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:40:04,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:40:04,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605656339] [2020-11-29 23:40:04,877 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:40:04,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:40:04,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:40:04,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:40:04,879 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. cyclomatic complexity: 54 Second operand 3 states. [2020-11-29 23:40:05,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:40:05,009 INFO L93 Difference]: Finished difference Result 155 states and 217 transitions. [2020-11-29 23:40:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:40:05,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 217 transitions. [2020-11-29 23:40:05,013 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2020-11-29 23:40:05,016 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 155 states and 217 transitions. [2020-11-29 23:40:05,016 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 155 [2020-11-29 23:40:05,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 155 [2020-11-29 23:40:05,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 217 transitions. [2020-11-29 23:40:05,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:40:05,018 INFO L691 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2020-11-29 23:40:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 217 transitions. [2020-11-29 23:40:05,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-11-29 23:40:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-11-29 23:40:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 217 transitions. [2020-11-29 23:40:05,029 INFO L714 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2020-11-29 23:40:05,029 INFO L594 BuchiCegarLoop]: Abstraction has 155 states and 217 transitions. [2020-11-29 23:40:05,029 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:40:05,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 155 states and 217 transitions. [2020-11-29 23:40:05,031 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2020-11-29 23:40:05,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:40:05,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:40:05,032 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:40:05,033 INFO L853 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] [2020-11-29 23:40:05,033 INFO L794 eck$LassoCheckResult]: Stem: 606#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(110, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(102, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 3 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(80, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(117, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(109, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(112, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(110, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(102, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 3 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(32, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 532#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 533#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; 565#L75 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 552#L169 assume 0 != main_~tmp~0; 553#L143 ~methAndRunningLastTime~0 := 0; 598#L192 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 523#L203-1 [2020-11-29 23:40:05,033 INFO L796 eck$LassoCheckResult]: Loop: 523#L203-1 assume !false; 536#L552 assume test_~splverifierCounter~0 < 4; 537#L553 test_~tmp~6 := test_#t~nondet42;havoc test_#t~nondet42; 604#L561 assume !(0 != test_~tmp~6); 595#L561-1 test_~tmp___0~3 := test_#t~nondet43;havoc test_#t~nondet43; 554#L571 assume !(0 != test_~tmp___0~3); 556#L571-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 557#L581 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 597#L589-2 assume !(0 != ~pumpRunning~0); 526#L343 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 527#L401 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 576#L375-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret40, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 577#L313-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 538#L318-1 isHighWaterLevel_#t~ret40 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret40;havoc isHighWaterLevel_#t~ret40; 539#L503-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 625#L503-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 610#L509-1 processEnvironment__wrappee__highWaterSensor_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret21;havoc processEnvironment__wrappee__highWaterSensor_#t~ret21; 611#L379-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 583#L350 havoc __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_#t~ret10, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 571#L273 __utac_acc__Specification2_spec__2_#t~ret9 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret9;havoc __utac_acc__Specification2_spec__2_#t~ret9; 572#L203 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 523#L203-1 [2020-11-29 23:40:05,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:05,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 23:40:05,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:05,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667343417] [2020-11-29 23:40:05,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:05,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:05,174 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:05,185 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:40:05,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:05,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1049372311, now seen corresponding path program 1 times [2020-11-29 23:40:05,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:05,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114317151] [2020-11-29 23:40:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:05,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:05,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:05,200 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:40:05,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:40:05,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1472453359, now seen corresponding path program 1 times [2020-11-29 23:40:05,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:40:05,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900133667] [2020-11-29 23:40:05,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:40:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:05,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:40:05,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:40:05,286 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:40:05,488 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-29 23:41:20,863 WARN L193 SmtUtils]: Spent 1.25 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 23:42:12,316 WARN L193 SmtUtils]: Spent 51.41 s on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 23:42:12,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:42:12 BoogieIcfgContainer [2020-11-29 23:42:12,569 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:42:12,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:42:12,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:42:12,572 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:42:12,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:40:03" (3/4) ... [2020-11-29 23:42:12,575 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:42:12,659 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8c22d94e-b16e-4b4a-b6cd-cacc4b565506/bin/uautomizer/witness.graphml [2020-11-29 23:42:12,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:42:12,663 INFO L168 Benchmark]: Toolchain (without parser) took 130522.81 ms. Allocated memory was 98.6 MB in the beginning and 172.0 MB in the end (delta: 73.4 MB). Free memory was 61.9 MB in the beginning and 43.6 MB in the end (delta: 18.3 MB). Peak memory consumption was 91.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:42:12,668 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 98.6 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:42:12,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.30 ms. Allocated memory is still 98.6 MB. Free memory was 61.7 MB in the beginning and 64.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:42:12,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.27 ms. Allocated memory is still 98.6 MB. Free memory was 64.7 MB in the beginning and 61.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:42:12,670 INFO L168 Benchmark]: Boogie Preprocessor took 73.23 ms. Allocated memory is still 98.6 MB. Free memory was 61.1 MB in the beginning and 58.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:42:12,671 INFO L168 Benchmark]: RCFGBuilder took 1039.43 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 58.3 MB in the beginning and 56.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:42:12,671 INFO L168 Benchmark]: BuchiAutomizer took 128716.97 ms. Allocated memory was 119.5 MB in the beginning and 172.0 MB in the end (delta: 52.4 MB). Free memory was 56.5 MB in the beginning and 46.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 75.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:42:12,671 INFO L168 Benchmark]: Witness Printer took 90.41 ms. Allocated memory is still 172.0 MB. Free memory was 46.6 MB in the beginning and 43.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:42:12,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 98.6 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 520.30 ms. Allocated memory is still 98.6 MB. Free memory was 61.7 MB in the beginning and 64.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.27 ms. Allocated memory is still 98.6 MB. Free memory was 64.7 MB in the beginning and 61.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.23 ms. Allocated memory is still 98.6 MB. Free memory was 61.1 MB in the beginning and 58.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1039.43 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 58.3 MB in the beginning and 56.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 128716.97 ms. Allocated memory was 119.5 MB in the beginning and 172.0 MB in the end (delta: 52.4 MB). Free memory was 56.5 MB in the beginning and 46.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 75.4 MB. Max. memory is 16.1 GB. * Witness Printer took 90.41 ms. Allocated memory is still 172.0 MB. Free memory was 46.6 MB in the beginning and 43.6 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 3 locations. The remainder module has 155 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 128.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. 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 155 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 337 SDtfs, 278 SDslu, 72 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 551]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4796272a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2937b0f2=72, NULL=20516, NULL=20512, methaneLevelCritical=0, NULL=0, NULL=20505, tmp=0, retValue_acc=0, NULL=20507, NULL=0, tmp___1=0, NULL=20513, NULL=0, NULL=20509, NULL=20515, cleanupTimeShifts=4, NULL=20502, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3579cc11=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68b32e66=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6775a90f=0, NULL=0, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44baced1=0, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, NULL=20497, NULL=0, NULL=0, \result=1, NULL=0, tmp=1, NULL=0, NULL=20519, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=0, methAndRunningLastTime=0, NULL=20501, NULL=20517, tmp=0, head=0, NULL=20506, NULL=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f2641fa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@281f1ae4=0, NULL=20495, tmp___0=0, NULL=0, NULL=0, NULL=20514, NULL=0, NULL=0, NULL=20496, NULL=20500, tmp=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=20504, NULL=0, retValue_acc=0, NULL=20499, \result=0, NULL=20492, NULL=20503, \result=0, NULL=20508, NULL=0, NULL=0, NULL=20494, tmp___0=0, NULL=20511, NULL=20498, retValue_acc=1, tmp___2=72, splverifierCounter=0, NULL=0, \result=0, NULL=20493, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14b6fae7=0, NULL=20518, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e03fee1=0, NULL=20510} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L80] int cleanupTimeShifts = 4; [L186] int methAndRunningLastTime ; [L230] int waterLevel = 1; [L231] int methaneLevelCritical = 0; [L336] int pumpRunning = 0; [L337] int systemActive = 1; [L777] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L160] int retValue_acc ; [L161] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L167] tmp = valid_product() [L169] COND TRUE \read(tmp) [L191] methAndRunningLastTime = 0 [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 Loop: [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp)) [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND TRUE \read(tmp___2) [L536] systemActive = 1 [L343] COND FALSE !(\read(pumpRunning)) [L350] COND TRUE \read(systemActive) [L398] int tmp ; [L401] COND FALSE !(\read(pumpRunning)) [L372] int tmp ; [L375] COND TRUE ! pumpRunning [L495] int retValue_acc ; [L496] int tmp ; [L497] int tmp___0 ; [L310] int retValue_acc ; [L313] COND TRUE waterLevel < 2 [L314] retValue_acc = 1 [L315] return (retValue_acc); [L501] tmp = isHighWaterSensorDry() [L503] COND TRUE \read(tmp) [L504] tmp___0 = 0 [L508] retValue_acc = tmp___0 [L509] return (retValue_acc); [L377] tmp = isHighWaterLevel() [L379] COND FALSE !(\read(tmp)) [L196] int tmp ; [L197] int tmp___0 ; [L269] int retValue_acc ; [L272] retValue_acc = methaneLevelCritical [L273] return (retValue_acc); [L201] tmp = isMethaneLevelCritical() [L203] COND FALSE !(\read(tmp)) [L219] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...