./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.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_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/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 64b6967f526946e3373ac9378676a7e29d538a50 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:22:41,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:22:41,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:22:41,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:22:41,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:22:41,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:22:41,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:22:41,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:22:41,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:22:41,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:22:41,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:22:41,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:22:41,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:22:41,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:22:41,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:22:41,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:22:41,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:22:41,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:22:41,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:22:41,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:22:41,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:22:41,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:22:41,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:22:41,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:22:41,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:22:41,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:22:41,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:22:41,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:22:41,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:22:41,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:22:41,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:22:41,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:22:41,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:22:41,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:22:41,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:22:41,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:22:41,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:22:41,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:22:41,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:22:41,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:22:41,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:22:41,669 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:22:41,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:22:41,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:22:41,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:22:41,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:22:41,727 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:22:41,727 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:22:41,728 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:22:41,728 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:22:41,728 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:22:41,729 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:22:41,730 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:22:41,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:22:41,731 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:22:41,731 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:22:41,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:22:41,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:22:41,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:22:41,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:22:41,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:22:41,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:22:41,733 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:22:41,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:22:41,733 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:22:41,734 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:22:41,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:22:41,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:22:41,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:22:41,735 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:22:41,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:22:41,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:22:41,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:22:41,738 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:22:41,739 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:22:41,740 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_d4f0d3ea-3e10-4eb6-b05d-d57601569018/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b6967f526946e3373ac9378676a7e29d538a50 [2020-11-29 18:22:42,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:22:42,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:22:42,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:22:42,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:22:42,099 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:22:42,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2020-11-29 18:22:42,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/data/f165ea25a/5039e03883c54f21b3c66c4950b490ef/FLAGbaf92e040 [2020-11-29 18:22:42,998 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:22:42,999 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2020-11-29 18:22:43,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/data/f165ea25a/5039e03883c54f21b3c66c4950b490ef/FLAGbaf92e040 [2020-11-29 18:22:43,254 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/data/f165ea25a/5039e03883c54f21b3c66c4950b490ef [2020-11-29 18:22:43,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:22:43,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:22:43,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:22:43,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:22:43,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:22:43,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:22:43" (1/1) ... [2020-11-29 18:22:43,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aab4dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:43, skipping insertion in model container [2020-11-29 18:22:43,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:22:43" (1/1) ... [2020-11-29 18:22:43,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:22:43,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:22:43,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:22:43,859 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:22:44,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:22:44,071 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:22:44,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44 WrapperNode [2020-11-29 18:22:44,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:22:44,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:22:44,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:22:44,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:22:44,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... [2020-11-29 18:22:44,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... [2020-11-29 18:22:44,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:22:44,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:22:44,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:22:44,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:22:44,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... [2020-11-29 18:22:44,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... [2020-11-29 18:22:44,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... [2020-11-29 18:22:44,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... [2020-11-29 18:22:44,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... [2020-11-29 18:22:44,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... [2020-11-29 18:22:44,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... [2020-11-29 18:22:44,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:22:44,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:22:44,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:22:44,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:22:44,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/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 18:22:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:22:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:22:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:22:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:22:45,666 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:22:45,667 INFO L298 CfgBuilder]: Removed 122 assume(true) statements. [2020-11-29 18:22:45,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:22:45 BoogieIcfgContainer [2020-11-29 18:22:45,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:22:45,673 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:22:45,673 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:22:45,677 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:22:45,678 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:22:45,679 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:22:43" (1/3) ... [2020-11-29 18:22:45,680 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@287eb0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:22:45, skipping insertion in model container [2020-11-29 18:22:45,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:22:45,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:22:44" (2/3) ... [2020-11-29 18:22:45,681 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@287eb0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:22:45, skipping insertion in model container [2020-11-29 18:22:45,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:22:45,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:22:45" (3/3) ... [2020-11-29 18:22:45,684 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-11-29 18:22:45,752 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:22:45,752 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:22:45,753 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:22:45,753 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:22:45,753 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:22:45,753 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:22:45,753 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:22:45,754 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:22:45,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states. [2020-11-29 18:22:45,826 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 18:22:45,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:22:45,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:22:45,838 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:22:45,839 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:22:45,839 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:22:45,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states. [2020-11-29 18:22:45,860 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2020-11-29 18:22:45,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:22:45,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:22:45,863 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:22:45,863 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:22:45,877 INFO L794 eck$LassoCheckResult]: Stem: 52#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 21#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 38#L815true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 42#L823true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 77#L920true assume 0 != main_~tmp~8; 48#L896true ~methAndRunningLastTime~0 := 0; 16#L51true havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 13#L62-1true [2020-11-29 18:22:45,880 INFO L796 eck$LassoCheckResult]: Loop: 13#L62-1true assume !false; 63#L736true assume test_~splverifierCounter~0 < 4; 82#L737true test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 86#L745true assume !(0 != test_~tmp~7); 89#L745-1true test_~tmp___0~2 := test_#t~nondet75;havoc test_#t~nondet75; 68#L755true assume !(0 != test_~tmp___0~2); 70#L755-1true test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 55#L765true assume 0 != test_~tmp___2~0; 12#L771-2true assume !(0 != ~pumpRunning~0); 35#L464true assume !(0 != ~systemActive~0); 11#L471true havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 49#L673-1true __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 17#L62true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 13#L62-1true [2020-11-29 18:22:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:22:45,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 18:22:45,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:22:45,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246822928] [2020-11-29 18:22:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:22:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:46,285 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:46,465 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:46,567 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:22:46,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:22:46,586 INFO L82 PathProgramCache]: Analyzing trace with hash 3091788, now seen corresponding path program 1 times [2020-11-29 18:22:46,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:22:46,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425951990] [2020-11-29 18:22:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:22:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:46,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:46,621 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:46,629 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:22:46,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:22:46,641 INFO L82 PathProgramCache]: Analyzing trace with hash 836388294, now seen corresponding path program 1 times [2020-11-29 18:22:46,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:22:46,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740478389] [2020-11-29 18:22:46,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:22:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:22:46,875 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 18:22:46,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740478389] [2020-11-29 18:22:46,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:22:46,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:22:46,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566700242] [2020-11-29 18:22:47,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:22:47,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:22:47,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:22:47,074 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 6 states. [2020-11-29 18:22:47,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:22:47,326 INFO L93 Difference]: Finished difference Result 88 states and 122 transitions. [2020-11-29 18:22:47,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:22:47,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 122 transitions. [2020-11-29 18:22:47,333 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 18:22:47,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 81 states and 115 transitions. [2020-11-29 18:22:47,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2020-11-29 18:22:47,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 81 [2020-11-29 18:22:47,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 115 transitions. [2020-11-29 18:22:47,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:22:47,345 INFO L691 BuchiCegarLoop]: Abstraction has 81 states and 115 transitions. [2020-11-29 18:22:47,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 115 transitions. [2020-11-29 18:22:47,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-11-29 18:22:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-29 18:22:47,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 115 transitions. [2020-11-29 18:22:47,392 INFO L714 BuchiCegarLoop]: Abstraction has 81 states and 115 transitions. [2020-11-29 18:22:47,393 INFO L594 BuchiCegarLoop]: Abstraction has 81 states and 115 transitions. [2020-11-29 18:22:47,393 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:22:47,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 115 transitions. [2020-11-29 18:22:47,395 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2020-11-29 18:22:47,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:22:47,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:22:47,397 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:22:47,397 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:22:47,398 INFO L794 eck$LassoCheckResult]: Stem: 259#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 231#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 232#L815 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 242#L823 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 249#L920 assume 0 != main_~tmp~8; 255#L896 ~methAndRunningLastTime~0 := 0; 221#L51 havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 219#L62-1 [2020-11-29 18:22:47,398 INFO L796 eck$LassoCheckResult]: Loop: 219#L62-1 assume !false; 220#L736 assume test_~splverifierCounter~0 < 4; 269#L737 test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 277#L745 assume !(0 != test_~tmp~7); 261#L745-1 test_~tmp___0~2 := test_#t~nondet75;havoc test_#t~nondet75; 273#L755 assume !(0 != test_~tmp___0~2); 272#L755-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 262#L765 assume 0 != test_~tmp___2~0; 206#L771-2 assume !(0 != ~pumpRunning~0); 214#L464 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 241#L496 assume !(0 == ~pumpRunning~0); 212#L471 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 213#L673-1 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 222#L62 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 219#L62-1 [2020-11-29 18:22:47,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:22:47,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 18:22:47,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:22:47,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535668896] [2020-11-29 18:22:47,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:22:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:47,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:47,520 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:47,540 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:22:47,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:22:47,542 INFO L82 PathProgramCache]: Analyzing trace with hash 54075939, now seen corresponding path program 1 times [2020-11-29 18:22:47,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:22:47,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404759048] [2020-11-29 18:22:47,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:22:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:22:47,558 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 18:22:47,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404759048] [2020-11-29 18:22:47,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:22:47,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:22:47,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317535237] [2020-11-29 18:22:47,560 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:22:47,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:22:47,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:22:47,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:22:47,561 INFO L87 Difference]: Start difference. First operand 81 states and 115 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-11-29 18:22:47,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:22:47,705 INFO L93 Difference]: Finished difference Result 125 states and 172 transitions. [2020-11-29 18:22:47,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:22:47,706 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 172 transitions. [2020-11-29 18:22:47,709 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 86 [2020-11-29 18:22:47,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 125 states and 172 transitions. [2020-11-29 18:22:47,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2020-11-29 18:22:47,719 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2020-11-29 18:22:47,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 172 transitions. [2020-11-29 18:22:47,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:22:47,722 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 172 transitions. [2020-11-29 18:22:47,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 172 transitions. [2020-11-29 18:22:47,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-29 18:22:47,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-29 18:22:47,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2020-11-29 18:22:47,734 INFO L714 BuchiCegarLoop]: Abstraction has 125 states and 172 transitions. [2020-11-29 18:22:47,734 INFO L594 BuchiCegarLoop]: Abstraction has 125 states and 172 transitions. [2020-11-29 18:22:47,735 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:22:47,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 172 transitions. [2020-11-29 18:22:47,737 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 86 [2020-11-29 18:22:47,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:22:47,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:22:47,742 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:22:47,742 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] [2020-11-29 18:22:47,743 INFO L794 eck$LassoCheckResult]: Stem: 475#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 444#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 445#L815 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 459#L823 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 465#L920 assume 0 != main_~tmp~8; 472#L896 ~methAndRunningLastTime~0 := 0; 434#L51 havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 435#L62-1 [2020-11-29 18:22:47,743 INFO L796 eck$LassoCheckResult]: Loop: 435#L62-1 assume !false; 500#L736 assume test_~splverifierCounter~0 < 4; 495#L737 test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 496#L745 assume !(0 != test_~tmp~7); 478#L745-1 test_~tmp___0~2 := test_#t~nondet75;havoc test_#t~nondet75; 490#L755 assume !(0 != test_~tmp___0~2); 489#L755-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 479#L765 assume 0 != test_~tmp___2~0; 419#L771-2 assume !(0 != ~pumpRunning~0); 427#L464 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 458#L496 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret63, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 448#L713 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 449#L718 isHighWaterLevel_#t~ret63 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret63;havoc isHighWaterLevel_#t~ret63; 481#L616 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 491#L616-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 461#L622 processEnvironment_#t~ret44 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret44;havoc processEnvironment_#t~ret44; 462#L500 assume !(0 != processEnvironment_~tmp~4); 439#L471 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 505#L673-1 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 503#L62 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 435#L62-1 [2020-11-29 18:22:47,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:22:47,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-11-29 18:22:47,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:22:47,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039852310] [2020-11-29 18:22:47,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:22:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:47,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:47,887 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:47,902 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:22:47,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:22:47,903 INFO L82 PathProgramCache]: Analyzing trace with hash 851388271, now seen corresponding path program 1 times [2020-11-29 18:22:47,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:22:47,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36065047] [2020-11-29 18:22:47,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:22:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:47,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:47,915 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:47,920 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:22:47,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:22:47,921 INFO L82 PathProgramCache]: Analyzing trace with hash 2016965045, now seen corresponding path program 1 times [2020-11-29 18:22:47,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:22:47,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977087881] [2020-11-29 18:22:47,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:22:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:47,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:22:48,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:22:48,058 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:22:48,239 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-11-29 18:22:48,356 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-29 18:24:31,582 WARN L193 SmtUtils]: Spent 1.72 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 18:25:40,929 WARN L193 SmtUtils]: Spent 1.16 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 18:25:41,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:25:41 BoogieIcfgContainer [2020-11-29 18:25:41,107 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:25:41,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:25:41,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:25:41,108 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:25:41,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:22:45" (3/4) ... [2020-11-29 18:25:41,112 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:25:41,174 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d4f0d3ea-3e10-4eb6-b05d-d57601569018/bin/uautomizer/witness.graphml [2020-11-29 18:25:41,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:25:41,176 INFO L168 Benchmark]: Toolchain (without parser) took 177915.86 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 74.1 MB in the beginning and 85.7 MB in the end (delta: -11.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:41,177 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 71.3 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:25:41,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.56 ms. Allocated memory is still 107.0 MB. Free memory was 73.9 MB in the beginning and 73.6 MB in the end (delta: 299.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:41,179 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.64 ms. Allocated memory is still 107.0 MB. Free memory was 73.6 MB in the beginning and 70.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:41,179 INFO L168 Benchmark]: Boogie Preprocessor took 85.25 ms. Allocated memory is still 107.0 MB. Free memory was 70.9 MB in the beginning and 68.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:41,180 INFO L168 Benchmark]: RCFGBuilder took 1392.67 ms. Allocated memory is still 107.0 MB. Free memory was 68.4 MB in the beginning and 62.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:41,181 INFO L168 Benchmark]: BuchiAutomizer took 175433.97 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 62.6 MB in the beginning and 88.7 MB in the end (delta: -26.1 MB). Peak memory consumption was 67.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:41,182 INFO L168 Benchmark]: Witness Printer took 67.19 ms. Allocated memory is still 138.4 MB. Free memory was 88.7 MB in the beginning and 85.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:25:41,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 71.3 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 808.56 ms. Allocated memory is still 107.0 MB. Free memory was 73.9 MB in the beginning and 73.6 MB in the end (delta: 299.0 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.64 ms. Allocated memory is still 107.0 MB. Free memory was 73.6 MB in the beginning and 70.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.25 ms. Allocated memory is still 107.0 MB. Free memory was 70.9 MB in the beginning and 68.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1392.67 ms. Allocated memory is still 107.0 MB. Free memory was 68.4 MB in the beginning and 62.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 175433.97 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 62.6 MB in the beginning and 88.7 MB in the end (delta: -26.1 MB). Peak memory consumption was 67.7 MB. Max. memory is 16.1 GB. * Witness Printer took 67.19 ms. Allocated memory is still 138.4 MB. Free memory was 88.7 MB in the beginning and 85.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 125 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 175.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 174.6s. Construction of modules took 0.2s. 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 125 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 232 SDtfs, 455 SDslu, 56 SDs, 0 SdLazy, 29 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 735]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12700} State at position 1 is {NULL=0, NULL=12700, NULL=12723, NULL=0, NULL=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, tmp=0, NULL=0, tmp___1=0, NULL=12720, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@360b7f7=0, NULL=0, NULL=12710, NULL=12717, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7388ea0c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54f99bdd=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e274c26=0, waterLevel=1, NULL=0, NULL=0, NULL=12703, NULL=12706, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=0, tmp=1, \result=1, NULL=0, NULL=0, tmp___0=0, NULL=12725, tmp=1, methAndRunningLastTime=0, NULL=12724, head=0, tmp=0, NULL=0, NULL=12719, NULL=12718, NULL=0, NULL=0, NULL=0, NULL=12707, NULL=0, NULL=0, NULL=12716, NULL=12705, NULL=12709, tmp___0=0, NULL=0, NULL=0, NULL=12708, NULL=0, NULL=12727, NULL=12722, NULL=12713, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@786e09ae=0, NULL=0, NULL=0, systemActive=1, NULL=12715, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74cde612=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=12728, \result=0, NULL=12701, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34330830=56, NULL=12712, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64eda7ab=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76fe7ff3=0, NULL=12714, NULL=12726, tmp___2=56, splverifierCounter=0, NULL=0, \result=0, NULL=12721, tmp=0, NULL=12711, NULL=12702, NULL=0, NULL=12704} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L45] int methAndRunningLastTime ; [L253] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L457] int pumpRunning = 0; [L458] int systemActive = 1; [L630] int waterLevel = 1; [L631] int methaneLevelCritical = 0; [L837] int cleanupTimeShifts = 4; [L911] int retValue_acc ; [L912] int tmp ; [L819] int retValue_acc ; [L822] retValue_acc = 1 [L823] return (retValue_acc); [L918] tmp = valid_product() [L920] COND TRUE \read(tmp) [L50] methAndRunningLastTime = 0 [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 Loop: [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L464] COND FALSE !(\read(pumpRunning)) [L471] COND TRUE \read(systemActive) [L493] int tmp ; [L496] COND TRUE ! pumpRunning [L608] int retValue_acc ; [L609] int tmp ; [L610] int tmp___0 ; [L710] int retValue_acc ; [L713] COND TRUE waterLevel < 2 [L714] retValue_acc = 1 [L715] return (retValue_acc); [L614] tmp = isHighWaterSensorDry() [L616] COND TRUE \read(tmp) [L617] tmp___0 = 0 [L621] retValue_acc = tmp___0 [L622] return (retValue_acc); [L498] tmp = isHighWaterLevel() [L500] COND FALSE !(\read(tmp)) [L55] int tmp ; [L56] int tmp___0 ; [L669] int retValue_acc ; [L672] retValue_acc = methaneLevelCritical [L673] return (retValue_acc); [L60] tmp = isMethaneLevelCritical() [L62] COND FALSE !(\read(tmp)) [L78] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...