./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product26.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_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product26.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/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 279357cdff3b7ff6c36fde0d2621d7e10ac1647b ............................................................................................................................................................................................................................................................................................................................................................................ 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 19:22:35,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:22:35,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:22:35,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:22:35,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:22:35,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:22:35,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:22:35,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:22:35,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:22:35,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:22:35,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:22:35,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:22:35,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:22:35,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:22:35,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:22:35,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:22:35,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:22:35,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:22:35,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:22:35,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:22:35,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:22:35,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:22:35,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:22:35,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:22:35,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:22:35,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:22:35,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:22:35,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:22:35,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:22:35,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:22:35,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:22:35,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:22:35,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:22:35,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:22:35,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:22:35,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:22:35,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:22:35,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:22:35,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:22:35,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:22:35,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:22:35,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:22:35,285 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:22:35,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:22:35,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:22:35,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:22:35,288 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:22:35,288 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:22:35,289 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:22:35,289 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:22:35,289 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:22:35,289 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:22:35,291 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:22:35,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:22:35,292 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:22:35,292 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:22:35,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:22:35,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:22:35,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:22:35,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:22:35,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:22:35,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:22:35,294 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:22:35,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:22:35,295 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:22:35,295 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:22:35,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:22:35,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:22:35,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:22:35,296 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:22:35,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:22:35,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:22:35,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:22:35,297 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:22:35,299 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:22:35,299 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_ea7c3aa3-480a-4e75-98fb-e587c7157d25/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 279357cdff3b7ff6c36fde0d2621d7e10ac1647b [2020-11-29 19:22:35,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:22:35,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:22:35,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:22:35,703 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:22:35,704 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:22:35,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product26.cil.c [2020-11-29 19:22:35,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/data/206cd0b14/7f3f4e9bac5246f8a36a5123fdfcba44/FLAG626fe5588 [2020-11-29 19:22:36,377 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:22:36,378 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/sv-benchmarks/c/product-lines/minepump_spec2_product26.cil.c [2020-11-29 19:22:36,393 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/data/206cd0b14/7f3f4e9bac5246f8a36a5123fdfcba44/FLAG626fe5588 [2020-11-29 19:22:36,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/data/206cd0b14/7f3f4e9bac5246f8a36a5123fdfcba44 [2020-11-29 19:22:36,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:22:36,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:22:36,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:22:36,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:22:36,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:22:36,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:22:36" (1/1) ... [2020-11-29 19:22:36,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d56c443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:36, skipping insertion in model container [2020-11-29 19:22:36,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:22:36" (1/1) ... [2020-11-29 19:22:36,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:22:36,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:22:37,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:22:37,222 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:22:37,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:22:37,374 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:22:37,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37 WrapperNode [2020-11-29 19:22:37,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:22:37,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:22:37,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:22:37,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:22:37,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... [2020-11-29 19:22:37,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... [2020-11-29 19:22:37,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:22:37,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:22:37,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:22:37,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:22:37,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... [2020-11-29 19:22:37,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... [2020-11-29 19:22:37,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... [2020-11-29 19:22:37,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... [2020-11-29 19:22:37,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... [2020-11-29 19:22:37,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... [2020-11-29 19:22:37,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... [2020-11-29 19:22:37,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:22:37,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:22:37,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:22:37,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:22:37,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/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 19:22:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:22:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:22:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:22:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:22:38,731 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:22:38,731 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-11-29 19:22:38,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:22:38 BoogieIcfgContainer [2020-11-29 19:22:38,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:22:38,736 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:22:38,736 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:22:38,740 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:22:38,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:22:38,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:22:36" (1/3) ... [2020-11-29 19:22:38,743 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f0ec079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:22:38, skipping insertion in model container [2020-11-29 19:22:38,743 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:22:38,744 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:22:37" (2/3) ... [2020-11-29 19:22:38,744 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f0ec079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:22:38, skipping insertion in model container [2020-11-29 19:22:38,744 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:22:38,745 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:22:38" (3/3) ... [2020-11-29 19:22:38,747 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product26.cil.c [2020-11-29 19:22:38,799 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:22:38,799 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:22:38,799 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:22:38,799 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:22:38,799 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:22:38,800 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:22:38,800 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:22:38,800 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:22:38,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states. [2020-11-29 19:22:38,841 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 19:22:38,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:38,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:38,852 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:38,852 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:38,852 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:22:38,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states. [2020-11-29 19:22:38,860 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-11-29 19:22:38,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:38,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:38,862 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:38,863 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:38,869 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~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(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 16#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 61#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 75#L75true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 50#L210true assume 0 != main_~tmp~1; 80#L185true ~methAndRunningLastTime~0 := 0; 64#L89true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 62#L100-1true [2020-11-29 19:22:38,870 INFO L796 eck$LassoCheckResult]: Loop: 62#L100-1true assume !false; 73#L884true assume test_~splverifierCounter~0 < 4; 34#L885true test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 37#L893true assume !(0 != test_~tmp~8); 38#L893-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 21#L903true assume !(0 != test_~tmp___0~2); 25#L903-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 79#L913true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 8#L921-2true assume !(0 != ~pumpRunning~0); 18#L702true assume !(0 != ~systemActive~0); 29#L709true havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 32#L271true __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 65#L100true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 62#L100-1true [2020-11-29 19:22:38,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:38,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-11-29 19:22:38,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:38,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445373335] [2020-11-29 19:22:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:39,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:39,430 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:39,501 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:39,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:39,510 INFO L82 PathProgramCache]: Analyzing trace with hash 3553549, now seen corresponding path program 1 times [2020-11-29 19:22:39,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:39,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84608659] [2020-11-29 19:22:39,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:22:39,598 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 19:22:39,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84608659] [2020-11-29 19:22:39,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:22:39,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:22:39,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644911227] [2020-11-29 19:22:39,606 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 19:22:39,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:22:39,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:22:39,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:22:39,626 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 3 states. [2020-11-29 19:22:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:22:39,692 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2020-11-29 19:22:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:22:39,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2020-11-29 19:22:39,703 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 19:22:39,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 69 states and 97 transitions. [2020-11-29 19:22:39,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2020-11-29 19:22:39,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2020-11-29 19:22:39,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 97 transitions. [2020-11-29 19:22:39,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:22:39,724 INFO L691 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2020-11-29 19:22:39,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 97 transitions. [2020-11-29 19:22:39,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-29 19:22:39,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-29 19:22:39,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2020-11-29 19:22:39,773 INFO L714 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2020-11-29 19:22:39,773 INFO L594 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2020-11-29 19:22:39,773 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:22:39,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 97 transitions. [2020-11-29 19:22:39,776 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 19:22:39,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:22:39,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:22:39,778 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:39,778 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:22:39,778 INFO L794 eck$LassoCheckResult]: Stem: 201#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~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(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 180#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 181#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 228#L75 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 218#L210 assume 0 != main_~tmp~1; 219#L185 ~methAndRunningLastTime~0 := 0; 230#L89 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 223#L100-1 [2020-11-29 19:22:39,779 INFO L796 eck$LassoCheckResult]: Loop: 223#L100-1 assume !false; 229#L884 assume test_~splverifierCounter~0 < 4; 199#L885 test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 200#L893 assume !(0 != test_~tmp~8); 203#L893-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 185#L903 assume !(0 != test_~tmp___0~2); 187#L903-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 189#L913 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 167#L921-2 assume !(0 != ~pumpRunning~0); 172#L702 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 183#L734 assume !(0 != ~pumpRunning~0); 171#L709 havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 192#L271 __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 194#L100 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 223#L100-1 [2020-11-29 19:22:39,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:39,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-11-29 19:22:39,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:39,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877793084] [2020-11-29 19:22:39,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:39,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:39,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:39,973 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:39,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:39,974 INFO L82 PathProgramCache]: Analyzing trace with hash 83166851, now seen corresponding path program 1 times [2020-11-29 19:22:39,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:39,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628977402] [2020-11-29 19:22:39,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:39,989 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:39,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:40,013 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:40,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:22:40,015 INFO L82 PathProgramCache]: Analyzing trace with hash 145554761, now seen corresponding path program 1 times [2020-11-29 19:22:40,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:22:40,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804769059] [2020-11-29 19:22:40,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:22:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:40,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:22:40,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:22:40,307 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:22:40,419 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-29 19:24:16,770 WARN L193 SmtUtils]: Spent 1.60 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2020-11-29 19:25:26,611 WARN L193 SmtUtils]: Spent 1.16 m on a formula simplification that was a NOOP. DAG size: 435 [2020-11-29 19:25:27,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:25:27 BoogieIcfgContainer [2020-11-29 19:25:27,065 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:25:27,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:25:27,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:25:27,067 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:25:27,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:22:38" (3/4) ... [2020-11-29 19:25:27,072 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:25:27,204 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ea7c3aa3-480a-4e75-98fb-e587c7157d25/bin/uautomizer/witness.graphml [2020-11-29 19:25:27,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:25:27,214 INFO L168 Benchmark]: Toolchain (without parser) took 170548.00 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 78.0 MB in the beginning and 112.5 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:25:27,227 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 115.3 MB. Free memory was 87.4 MB in the beginning and 87.4 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:25:27,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.28 ms. Allocated memory is still 115.3 MB. Free memory was 77.8 MB in the beginning and 79.8 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:27,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.50 ms. Allocated memory is still 115.3 MB. Free memory was 79.8 MB in the beginning and 76.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:27,231 INFO L168 Benchmark]: Boogie Preprocessor took 88.79 ms. Allocated memory is still 115.3 MB. Free memory was 76.7 MB in the beginning and 74.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:27,232 INFO L168 Benchmark]: RCFGBuilder took 1140.32 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 74.6 MB in the beginning and 103.5 MB in the end (delta: -28.8 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:27,233 INFO L168 Benchmark]: BuchiAutomizer took 168329.70 ms. Allocated memory is still 144.7 MB. Free memory was 103.5 MB in the beginning and 114.6 MB in the end (delta: -11.1 MB). Peak memory consumption was 71.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:27,234 INFO L168 Benchmark]: Witness Printer took 145.01 ms. Allocated memory is still 144.7 MB. Free memory was 114.6 MB in the beginning and 112.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:25:27,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 115.3 MB. Free memory was 87.4 MB in the beginning and 87.4 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 708.28 ms. Allocated memory is still 115.3 MB. Free memory was 77.8 MB in the beginning and 79.8 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 127.50 ms. Allocated memory is still 115.3 MB. Free memory was 79.8 MB in the beginning and 76.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.79 ms. Allocated memory is still 115.3 MB. Free memory was 76.7 MB in the beginning and 74.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1140.32 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 74.6 MB in the beginning and 103.5 MB in the end (delta: -28.8 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 168329.70 ms. Allocated memory is still 144.7 MB. Free memory was 103.5 MB in the beginning and 114.6 MB in the end (delta: -11.1 MB). Peak memory consumption was 71.7 MB. Max. memory is 16.1 GB. * Witness Printer took 145.01 ms. Allocated memory is still 144.7 MB. Free memory was 114.6 MB in the beginning and 112.5 MB in the end (delta: 2.1 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 69 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 168.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 167.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 102 SDtfs, 102 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 883]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13570} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=13570, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=13582, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1673e3dc=0, NULL=13587, methaneLevelCritical=0, NULL=23678, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a290618=0, NULL=23681, tmp=0, tmp___1=0, NULL=0, NULL=0, NULL=23680, NULL=13583, cleanupTimeShifts=4, NULL=23676, NULL=13576, NULL=13573, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4edd6ed7=0, NULL=23679, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75b4c044=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e549d3e=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15309103=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5430fd1b=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=23677, NULL=13577, NULL=0, NULL=0, NULL=13574, NULL=0, NULL=23682, \result=1, NULL=13585, head=0, pumpRunning=0, NULL=13579, \result=0, NULL=13581, NULL=13584, NULL=13588, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64fe45e5=0, NULL=13575, tmp___0=0, NULL=0, NULL=0, NULL=13572, retValue_acc=1, tmp___2=65, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=23675, NULL=13571, head=0, tmp=0, NULL=0, NULL=0, NULL=13586, tmp=0, NULL=13580, NULL=13578, NULL=13589, NULL=0, NULL=23674} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L83] int methAndRunningLastTime ; [L122] int cleanupTimeShifts = 4; [L228] int waterLevel = 1; [L229] int methaneLevelCritical = 0; [L495] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L695] int pumpRunning = 0; [L696] int systemActive = 1; [L201] int retValue_acc ; [L202] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L208] tmp = valid_product() [L210] COND TRUE \read(tmp) [L88] methAndRunningLastTime = 0 [L874] int splverifierCounter ; [L875] int tmp ; [L876] int tmp___0 ; [L877] int tmp___1 ; [L878] int tmp___2 ; [L881] splverifierCounter = 0 Loop: [L883] COND TRUE 1 [L885] COND TRUE splverifierCounter < 4 [L891] tmp = __VERIFIER_nondet_int() [L893] COND FALSE !(\read(tmp)) [L901] tmp___0 = __VERIFIER_nondet_int() [L903] COND FALSE !(\read(tmp___0)) [L911] tmp___2 = __VERIFIER_nondet_int() [L913] COND TRUE \read(tmp___2) [L868] systemActive = 1 [L702] COND FALSE !(\read(pumpRunning)) [L709] COND TRUE \read(systemActive) [L731] int tmp ; [L734] COND FALSE !(\read(pumpRunning)) [L93] int tmp ; [L94] int tmp___0 ; [L267] int retValue_acc ; [L270] retValue_acc = methaneLevelCritical [L271] return (retValue_acc); [L98] tmp = isMethaneLevelCritical() [L100] COND FALSE !(\read(tmp)) [L116] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...