./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/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 7e359c3e690bc34b8e145f12f51e57f299b8b0bc ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:05:40,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:05:40,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:05:40,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:05:40,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:05:40,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:05:40,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:05:40,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:05:40,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:05:40,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:05:40,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:05:40,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:05:40,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:05:40,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:05:40,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:05:40,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:05:40,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:05:40,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:05:40,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:05:40,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:05:40,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:05:40,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:05:40,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:05:40,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:05:40,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:05:40,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:05:40,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:05:40,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:05:40,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:05:40,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:05:40,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:05:40,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:05:40,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:05:40,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:05:40,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:05:40,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:05:40,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:05:40,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:05:40,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:05:40,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:05:40,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:05:40,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 16:05:40,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:05:40,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:05:40,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:05:40,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:05:40,932 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 16:05:40,932 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 16:05:40,933 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 16:05:40,933 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 16:05:40,933 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 16:05:40,933 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 16:05:40,934 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 16:05:40,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:05:40,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:05:40,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:05:40,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:05:40,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:05:40,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:05:40,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 16:05:40,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 16:05:40,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 16:05:40,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:05:40,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:05:40,937 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 16:05:40,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:05:40,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 16:05:40,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:05:40,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 16:05:40,939 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 16:05:40,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:05:40,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 16:05:40,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 16:05:40,941 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 16:05:40,942 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 16:05:40,943 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_9f441527-432b-4aa3-b60f-bd043f6449d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e359c3e690bc34b8e145f12f51e57f299b8b0bc [2020-12-01 16:05:41,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:05:41,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:05:41,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:05:41,211 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:05:41,212 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:05:41,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2020-12-01 16:05:41,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/data/9bf0a51a3/1c7c7656659e41eab983ced56482044e/FLAGab7a408f4 [2020-12-01 16:05:41,846 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:05:41,847 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2020-12-01 16:05:41,860 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/data/9bf0a51a3/1c7c7656659e41eab983ced56482044e/FLAGab7a408f4 [2020-12-01 16:05:42,152 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/data/9bf0a51a3/1c7c7656659e41eab983ced56482044e [2020-12-01 16:05:42,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:05:42,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:05:42,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:05:42,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:05:42,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:05:42,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e15c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42, skipping insertion in model container [2020-12-01 16:05:42,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:05:42,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:05:42,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:05:42,674 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:05:42,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:05:42,784 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:05:42,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42 WrapperNode [2020-12-01 16:05:42,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:05:42,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:05:42,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:05:42,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:05:42,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:05:42,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:05:42,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:05:42,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:05:42,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... [2020-12-01 16:05:42,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:05:42,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:05:42,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:05:42,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:05:42,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:05:43,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:05:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:05:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:05:43,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:05:44,103 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:05:44,103 INFO L298 CfgBuilder]: Removed 128 assume(true) statements. [2020-12-01 16:05:44,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:05:44 BoogieIcfgContainer [2020-12-01 16:05:44,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:05:44,107 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 16:05:44,107 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 16:05:44,111 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 16:05:44,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:05:44,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 04:05:42" (1/3) ... [2020-12-01 16:05:44,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17c539ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:05:44, skipping insertion in model container [2020-12-01 16:05:44,114 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:05:44,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:05:42" (2/3) ... [2020-12-01 16:05:44,115 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17c539ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 04:05:44, skipping insertion in model container [2020-12-01 16:05:44,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 16:05:44,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:05:44" (3/3) ... [2020-12-01 16:05:44,133 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2020-12-01 16:05:44,187 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 16:05:44,188 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 16:05:44,188 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 16:05:44,188 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 16:05:44,188 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 16:05:44,188 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 16:05:44,188 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 16:05:44,189 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 16:05:44,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-12-01 16:05:44,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2020-12-01 16:05:44,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:05:44,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:05:44,261 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 16:05:44,261 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 16:05:44,261 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 16:05:44,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states. [2020-12-01 16:05:44,279 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2020-12-01 16:05:44,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:05:44,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:05:44,281 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 16:05:44,281 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 16:05:44,286 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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 12#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 4#L526true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 25#L534true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 40#L132true assume 0 != main_~tmp~0; 80#L105true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 76#L920-1true [2020-12-01 16:05:44,287 INFO L796 eck$LassoCheckResult]: Loop: 76#L920-1true assume !false; 26#L158true assume test_~splverifierCounter~0 < 4; 82#L159true test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 77#L167true assume !(0 != test_~tmp~1); 75#L167-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 49#L177true assume !(0 != test_~tmp___0~0); 45#L177-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 22#L187true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 62#L195-2true assume !(0 != ~pumpRunning~0); 71#L229true assume !(0 != ~systemActive~0); 88#L236true havoc __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 66#L444-1true __utac_acc__Specification3_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 13#L914true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 76#L920-1true [2020-12-01 16:05:44,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:44,294 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-12-01 16:05:44,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:44,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438416191] [2020-12-01 16:05:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:44,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:44,811 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:44,878 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:05:44,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:44,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1680236938, now seen corresponding path program 1 times [2020-12-01 16:05:44,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:44,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249577781] [2020-12-01 16:05:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:05:44,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:05:44,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249577781] [2020-12-01 16:05:44,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 16:05:44,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 16:05:44,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444512920] [2020-12-01 16:05:44,977 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 16:05:44,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 16:05:44,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 16:05:45,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 16:05:45,003 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 3 states. [2020-12-01 16:05:45,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 16:05:45,086 INFO L93 Difference]: Finished difference Result 90 states and 125 transitions. [2020-12-01 16:05:45,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 16:05:45,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 125 transitions. [2020-12-01 16:05:45,098 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-12-01 16:05:45,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 83 states and 117 transitions. [2020-12-01 16:05:45,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 83 [2020-12-01 16:05:45,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 83 [2020-12-01 16:05:45,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 117 transitions. [2020-12-01 16:05:45,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:05:45,114 INFO L692 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-12-01 16:05:45,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 117 transitions. [2020-12-01 16:05:45,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-12-01 16:05:45,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-12-01 16:05:45,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2020-12-01 16:05:45,174 INFO L715 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-12-01 16:05:45,174 INFO L595 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-12-01 16:05:45,174 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 16:05:45,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 117 transitions. [2020-12-01 16:05:45,180 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2020-12-01 16:05:45,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:05:45,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:05:45,183 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 16:05:45,184 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 16:05:45,184 INFO L794 eck$LassoCheckResult]: Stem: 234#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 211#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 197#L526 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 198#L534 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 228#L132 assume 0 != main_~tmp~0; 243#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 213#L920-1 [2020-12-01 16:05:45,185 INFO L796 eck$LassoCheckResult]: Loop: 213#L920-1 assume !false; 229#L158 assume test_~splverifierCounter~0 < 4; 230#L159 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 274#L167 assume !(0 != test_~tmp~1); 273#L167-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 261#L177 assume !(0 != test_~tmp___0~0); 221#L177-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 222#L187 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 223#L195-2 assume !(0 != ~pumpRunning~0); 263#L229 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 247#L261 assume !(0 == ~pumpRunning~0); 248#L236 havoc __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 269#L444-1 __utac_acc__Specification3_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 212#L914 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 213#L920-1 [2020-12-01 16:05:45,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:45,186 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-12-01 16:05:45,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:45,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941593464] [2020-12-01 16:05:45,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:45,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:45,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:45,439 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:05:45,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:45,444 INFO L82 PathProgramCache]: Analyzing trace with hash -589506386, now seen corresponding path program 1 times [2020-12-01 16:05:45,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:45,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706793531] [2020-12-01 16:05:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:05:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:05:45,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706793531] [2020-12-01 16:05:45,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 16:05:45,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 16:05:45,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533190590] [2020-12-01 16:05:45,480 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 16:05:45,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 16:05:45,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 16:05:45,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 16:05:45,483 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-12-01 16:05:45,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 16:05:45,615 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2020-12-01 16:05:45,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 16:05:45,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 177 transitions. [2020-12-01 16:05:45,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2020-12-01 16:05:45,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 130 states and 177 transitions. [2020-12-01 16:05:45,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 130 [2020-12-01 16:05:45,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 130 [2020-12-01 16:05:45,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 130 states and 177 transitions. [2020-12-01 16:05:45,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:05:45,631 INFO L692 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2020-12-01 16:05:45,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states and 177 transitions. [2020-12-01 16:05:45,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-12-01 16:05:45,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-12-01 16:05:45,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2020-12-01 16:05:45,665 INFO L715 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2020-12-01 16:05:45,666 INFO L595 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2020-12-01 16:05:45,666 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 16:05:45,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 177 transitions. [2020-12-01 16:05:45,669 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2020-12-01 16:05:45,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:05:45,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:05:45,671 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 16:05:45,671 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 16:05:45,671 INFO L794 eck$LassoCheckResult]: Stem: 453#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 430#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 413#L526 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 414#L534 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 447#L132 assume 0 != main_~tmp~0; 465#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 502#L920-1 [2020-12-01 16:05:45,672 INFO L796 eck$LassoCheckResult]: Loop: 502#L920-1 assume !false; 506#L158 assume test_~splverifierCounter~0 < 4; 507#L159 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 525#L167 assume !(0 != test_~tmp~1); 523#L167-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 521#L177 assume !(0 != test_~tmp___0~0); 519#L177-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 510#L187 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 493#L195-2 assume !(0 != ~pumpRunning~0); 494#L229 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 469#L261 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 466#L484 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 467#L489 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 454#L381 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 455#L381-2 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 418#L387 processEnvironment_#t~ret12 := isHighWaterLevel_#res;processEnvironment_~tmp~2 := processEnvironment_#t~ret12;havoc processEnvironment_#t~ret12; 419#L265 assume !(0 != processEnvironment_~tmp~2); 490#L236 havoc __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 518#L444-1 __utac_acc__Specification3_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 513#L914 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 502#L920-1 [2020-12-01 16:05:45,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:45,673 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-12-01 16:05:45,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:45,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775683728] [2020-12-01 16:05:45,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:45,727 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:45,777 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:45,805 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:05:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:45,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1033634406, now seen corresponding path program 1 times [2020-12-01 16:05:45,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:45,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582549267] [2020-12-01 16:05:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:45,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:45,827 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:45,835 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:05:45,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:45,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1018922432, now seen corresponding path program 1 times [2020-12-01 16:05:45,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:45,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328691387] [2020-12-01 16:05:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:05:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:05:45,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328691387] [2020-12-01 16:05:45,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 16:05:45,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 16:05:45,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965386333] [2020-12-01 16:05:46,184 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-01 16:05:46,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 16:05:46,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 16:05:46,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 16:05:46,301 INFO L87 Difference]: Start difference. First operand 130 states and 177 transitions. cyclomatic complexity: 49 Second operand 5 states. [2020-12-01 16:05:46,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 16:05:46,533 INFO L93 Difference]: Finished difference Result 434 states and 594 transitions. [2020-12-01 16:05:46,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 16:05:46,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 434 states and 594 transitions. [2020-12-01 16:05:46,541 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 314 [2020-12-01 16:05:46,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 434 states to 434 states and 594 transitions. [2020-12-01 16:05:46,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 434 [2020-12-01 16:05:46,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 434 [2020-12-01 16:05:46,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 434 states and 594 transitions. [2020-12-01 16:05:46,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:05:46,554 INFO L692 BuchiCegarLoop]: Abstraction has 434 states and 594 transitions. [2020-12-01 16:05:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states and 594 transitions. [2020-12-01 16:05:46,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 254. [2020-12-01 16:05:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-12-01 16:05:46,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 340 transitions. [2020-12-01 16:05:46,594 INFO L715 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2020-12-01 16:05:46,594 INFO L595 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2020-12-01 16:05:46,594 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 16:05:46,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 254 states and 340 transitions. [2020-12-01 16:05:46,596 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2020-12-01 16:05:46,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:05:46,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:05:46,597 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-12-01 16:05:46,597 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 16:05:46,597 INFO L794 eck$LassoCheckResult]: Stem: 1033#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);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~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);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);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1012#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 995#L526 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 996#L534 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1027#L132 assume 0 != main_~tmp~0; 1045#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1085#L920-1 [2020-12-01 16:05:46,597 INFO L796 eck$LassoCheckResult]: Loop: 1085#L920-1 assume !false; 1028#L158 assume test_~splverifierCounter~0 < 4; 1029#L159 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 1086#L167 assume !(0 != test_~tmp~1); 1083#L167-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 1061#L177 assume !(0 != test_~tmp___0~0); 1051#L177-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 1021#L187 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1022#L195-2 assume !(0 != ~pumpRunning~0); 1077#L229 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1081#L261 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret31, isHighWaterLevel_~retValue_acc~3, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~3;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1046#L484 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1047#L489 isHighWaterLevel_#t~ret31 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret31;havoc isHighWaterLevel_#t~ret31; 1034#L381 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1035#L381-2 isHighWaterLevel_~retValue_acc~3 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~3; 1000#L387 processEnvironment_#t~ret12 := isHighWaterLevel_#res;processEnvironment_~tmp~2 := processEnvironment_#t~ret12;havoc processEnvironment_#t~ret12; 1001#L265 assume !(0 != processEnvironment_~tmp~2); 1074#L236 havoc __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_#t~ret80, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 1078#L444-1 __utac_acc__Specification3_spec__1_#t~ret78 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 1013#L914 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1014#L476 __utac_acc__Specification3_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret79;havoc __utac_acc__Specification3_spec__1_#t~ret79; 1037#L920 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1085#L920-1 [2020-12-01 16:05:46,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:46,598 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2020-12-01 16:05:46,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:46,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289465132] [2020-12-01 16:05:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:46,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:46,680 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:46,693 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:05:46,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:46,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1185212338, now seen corresponding path program 1 times [2020-12-01 16:05:46,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:46,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299424144] [2020-12-01 16:05:46,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:46,704 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:46,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:46,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:05:46,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:05:46,723 INFO L82 PathProgramCache]: Analyzing trace with hash 68092788, now seen corresponding path program 1 times [2020-12-01 16:05:46,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:05:46,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561122639] [2020-12-01 16:05:46,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:05:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:46,776 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:05:46,828 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:05:46,895 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:05:47,094 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-01 16:07:06,581 WARN L197 SmtUtils]: Spent 1.32 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-12-01 16:07:52,274 WARN L197 SmtUtils]: Spent 45.66 s on a formula simplification that was a NOOP. DAG size: 433 [2020-12-01 16:07:52,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 04:07:52 BoogieIcfgContainer [2020-12-01 16:07:52,505 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 16:07:52,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:07:52,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:07:52,506 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:07:52,506 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:05:44" (3/4) ... [2020-12-01 16:07:52,509 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-12-01 16:07:52,558 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9f441527-432b-4aa3-b60f-bd043f6449d2/bin/uautomizer/witness.graphml [2020-12-01 16:07:52,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:07:52,560 INFO L168 Benchmark]: Toolchain (without parser) took 130402.82 ms. Allocated memory was 86.0 MB in the beginning and 176.2 MB in the end (delta: 90.2 MB). Free memory was 51.0 MB in the beginning and 54.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 87.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:07:52,560 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 59.5 MB in the beginning and 59.5 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:07:52,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.01 ms. Allocated memory is still 86.0 MB. Free memory was 50.9 MB in the beginning and 52.8 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:07:52,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.52 ms. Allocated memory is still 86.0 MB. Free memory was 52.8 MB in the beginning and 49.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:07:52,562 INFO L168 Benchmark]: Boogie Preprocessor took 86.20 ms. Allocated memory is still 86.0 MB. Free memory was 49.4 MB in the beginning and 47.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:07:52,563 INFO L168 Benchmark]: RCFGBuilder took 1134.74 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 47.1 MB in the beginning and 59.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:07:52,563 INFO L168 Benchmark]: BuchiAutomizer took 128398.49 ms. Allocated memory was 104.9 MB in the beginning and 176.2 MB in the end (delta: 71.3 MB). Free memory was 59.2 MB in the beginning and 57.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 92.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:07:52,564 INFO L168 Benchmark]: Witness Printer took 53.14 ms. Allocated memory is still 176.2 MB. Free memory was 57.3 MB in the beginning and 54.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:07:52,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 59.5 MB in the beginning and 59.5 MB in the end (delta: 25.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 623.01 ms. Allocated memory is still 86.0 MB. Free memory was 50.9 MB in the beginning and 52.8 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.52 ms. Allocated memory is still 86.0 MB. Free memory was 52.8 MB in the beginning and 49.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.20 ms. Allocated memory is still 86.0 MB. Free memory was 49.4 MB in the beginning and 47.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1134.74 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 47.1 MB in the beginning and 59.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 128398.49 ms. Allocated memory was 104.9 MB in the beginning and 176.2 MB in the end (delta: 71.3 MB). Free memory was 59.2 MB in the beginning and 57.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 92.0 MB. Max. memory is 16.1 GB. * Witness Printer took 53.14 ms. Allocated memory is still 176.2 MB. Free memory was 57.3 MB in the beginning and 54.2 MB in the end (delta: 3.1 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 254 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 127.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 180 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 254 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 395 SDtfs, 649 SDslu, 534 SDs, 0 SdLazy, 103 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 157]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=29534} State at position 1 is {NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@578d9397=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@771d12fc=0, NULL=29534, NULL=29560, NULL=0, NULL=29555, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@754a565e=0, retValue_acc=0, NULL=29542, tmp___1=0, NULL=0, NULL=29553, NULL=29546, cleanupTimeShifts=4, tmp=0, tmp=0, waterLevel=1, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, NULL=29562, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bf1f871=0, \result=1, NULL=29536, NULL=0, NULL=0, tmp=1, NULL=29561, NULL=0, NULL=0, NULL=0, NULL=29541, NULL=29544, retValue_acc=1, NULL=29535, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f04761e=0, head=0, NULL=0, NULL=0, NULL=29537, NULL=0, NULL=0, NULL=29547, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13cf8272=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37e4c870=0, NULL=0, NULL=29538, NULL=29559, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@498873d9=78, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@711f4afe=0, NULL=29548, tmp___0=0, NULL=0, NULL=29543, NULL=0, NULL=0, NULL=29554, tmp___0=1, NULL=0, systemActive=1, \result=1, \result=0, retValue_acc=0, NULL=29550, NULL=29540, \result=0, NULL=29558, NULL=0, NULL=0, NULL=29545, NULL=29551, retValue_acc=1, NULL=29563, tmp___2=78, splverifierCounter=0, NULL=0, \result=0, NULL=29549, NULL=29557, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15f0ecc8=0, NULL=0, NULL=0, NULL=29539, NULL=0, NULL=29552} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L221] int pumpRunning = 0; [L222] int systemActive = 1; [L401] int waterLevel = 1; [L402] int methaneLevelCritical = 0; [L708] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L530] int retValue_acc ; [L533] retValue_acc = 1 [L534] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L148] int splverifierCounter ; [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L152] int tmp___2 ; [L155] splverifierCounter = 0 Loop: [L157] COND TRUE 1 [L159] COND TRUE splverifierCounter < 4 [L165] tmp = __VERIFIER_nondet_int() [L167] COND FALSE !(\read(tmp)) [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) [L395] systemActive = 1 [L229] COND FALSE !(\read(pumpRunning)) [L236] COND TRUE \read(systemActive) [L258] int tmp ; [L261] COND TRUE ! pumpRunning [L373] int retValue_acc ; [L374] int tmp ; [L375] int tmp___0 ; [L481] int retValue_acc ; [L484] COND TRUE waterLevel < 2 [L485] retValue_acc = 1 [L486] return (retValue_acc); [L379] tmp = isHighWaterSensorDry() [L381] COND TRUE \read(tmp) [L382] tmp___0 = 0 [L386] retValue_acc = tmp___0 [L387] return (retValue_acc); [L263] tmp = isHighWaterLevel() [L265] COND FALSE !(\read(tmp)) [L906] int tmp ; [L907] int tmp___0 ; [L908] int tmp___1 ; [L440] int retValue_acc ; [L443] retValue_acc = methaneLevelCritical [L444] return (retValue_acc); [L912] tmp = isMethaneLevelCritical() [L914] COND FALSE !(\read(tmp)) [L472] int retValue_acc ; [L475] retValue_acc = waterLevel [L476] return (retValue_acc); [L918] tmp___0 = getWaterLevel() [L920] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...