./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product09.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_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/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 e091116155bef94531c8dcf2197eb34bed5ec812 .................................................................................................................................................................................................................................................................................................................................................................................... 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 19:40:00,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:40:00,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:40:00,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:40:00,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:40:00,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:40:00,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:40:00,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:40:00,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:40:00,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:40:00,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:40:00,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:40:00,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:40:00,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:40:00,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:40:00,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:40:00,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:40:00,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:40:00,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:40:00,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:40:00,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:40:00,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:40:00,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:40:00,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:40:00,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:40:00,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:40:00,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:40:00,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:40:00,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:40:00,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:40:00,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:40:00,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:40:00,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:40:00,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:40:00,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:40:00,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:40:00,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:40:00,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:40:00,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:40:00,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:40:00,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:40:00,265 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 19:40:00,314 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:40:00,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:40:00,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:40:00,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:40:00,317 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:40:00,318 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:40:00,318 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:40:00,318 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:40:00,318 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:40:00,319 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:40:00,320 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:40:00,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:40:00,320 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:40:00,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:40:00,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:40:00,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:40:00,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:40:00,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:40:00,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:40:00,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:40:00,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:40:00,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:40:00,323 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:40:00,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:40:00,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:40:00,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:40:00,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:40:00,324 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:40:00,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:40:00,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:40:00,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:40:00,327 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:40:00,328 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:40:00,329 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_d9d1b9da-ee59-402e-83bf-7552e83ec83f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e091116155bef94531c8dcf2197eb34bed5ec812 [2020-11-29 19:40:00,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:40:00,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:40:00,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:40:00,712 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:40:00,713 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:40:00,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c [2020-11-29 19:40:00,829 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/data/92366d835/36fd6a4554a9403f8775cc59978e7ea6/FLAG9819db5e3 [2020-11-29 19:40:01,495 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:40:01,497 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/sv-benchmarks/c/product-lines/minepump_spec3_product09.cil.c [2020-11-29 19:40:01,519 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/data/92366d835/36fd6a4554a9403f8775cc59978e7ea6/FLAG9819db5e3 [2020-11-29 19:40:01,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/data/92366d835/36fd6a4554a9403f8775cc59978e7ea6 [2020-11-29 19:40:01,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:40:01,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:40:01,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:40:01,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:40:01,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:40:01,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:40:01" (1/1) ... [2020-11-29 19:40:01,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8105d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:01, skipping insertion in model container [2020-11-29 19:40:01,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:40:01" (1/1) ... [2020-11-29 19:40:01,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:40:01,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:40:02,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:40:02,288 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:40:02,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:40:02,487 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:40:02,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02 WrapperNode [2020-11-29 19:40:02,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:40:02,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:40:02,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:40:02,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:40:02,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... [2020-11-29 19:40:02,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... [2020-11-29 19:40:02,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:40:02,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:40:02,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:40:02,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:40:02,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... [2020-11-29 19:40:02,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... [2020-11-29 19:40:02,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... [2020-11-29 19:40:02,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... [2020-11-29 19:40:02,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... [2020-11-29 19:40:02,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... [2020-11-29 19:40:02,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... [2020-11-29 19:40:02,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:40:02,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:40:02,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:40:02,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:40:02,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/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 19:40:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:40:02,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:40:02,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:40:02,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:40:03,732 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:40:03,733 INFO L298 CfgBuilder]: Removed 78 assume(true) statements. [2020-11-29 19:40:03,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:03 BoogieIcfgContainer [2020-11-29 19:40:03,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:40:03,736 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:40:03,736 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:40:03,740 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:40:03,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:40:03,741 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:40:01" (1/3) ... [2020-11-29 19:40:03,743 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d8f5e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:40:03, skipping insertion in model container [2020-11-29 19:40:03,743 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:40:03,743 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:40:02" (2/3) ... [2020-11-29 19:40:03,744 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d8f5e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:40:03, skipping insertion in model container [2020-11-29 19:40:03,744 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:40:03,744 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:03" (3/3) ... [2020-11-29 19:40:03,746 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product09.cil.c [2020-11-29 19:40:03,805 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:40:03,805 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:40:03,805 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:40:03,805 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:40:03,805 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:40:03,806 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:40:03,806 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:40:03,806 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:40:03,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states. [2020-11-29 19:40:03,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2020-11-29 19:40:03,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:40:03,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:40:03,866 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:40:03,867 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:03,867 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:40:03,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states. [2020-11-29 19:40:03,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2020-11-29 19:40:03,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:40:03,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:40:03,875 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:40:03,875 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:03,880 INFO L794 eck$LassoCheckResult]: Stem: 38#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 15#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 5#L409true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 30#L417true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 44#L132true assume 0 != main_~tmp~0; 55#L105true havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 65#L368-1true [2020-11-29 19:40:03,881 INFO L796 eck$LassoCheckResult]: Loop: 65#L368-1true assume !false; 45#L166true assume test_~splverifierCounter~0 < 4; 51#L167true test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 3#L175true assume !(0 != test_~tmp~1); 26#L175-1true test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 64#L185true assume !(0 != test_~tmp___0~0); 61#L185-1true test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 48#L195true assume 0 != test_~tmp___2~0; 9#L201-2true assume !(0 != ~pumpRunning~0); 35#L234true assume 0 != ~systemActive~0; 8#L241true havoc __utac_acc__Specification3_spec__1_#t~ret30, __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 46#L831true __utac_acc__Specification3_spec__1_#t~ret30 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret30;havoc __utac_acc__Specification3_spec__1_#t~ret30; 33#L362true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 65#L368-1true [2020-11-29 19:40:03,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:03,888 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 19:40:03,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:03,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303662593] [2020-11-29 19:40:03,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:04,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:04,438 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:04,484 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:40:04,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:04,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1682573544, now seen corresponding path program 1 times [2020-11-29 19:40:04,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:04,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658674612] [2020-11-29 19:40:04,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:04,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:04,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:04,520 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:40:04,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:04,522 INFO L82 PathProgramCache]: Analyzing trace with hash 31705394, now seen corresponding path program 1 times [2020-11-29 19:40:04,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:04,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489333189] [2020-11-29 19:40:04,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:40:04,691 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 19:40:04,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489333189] [2020-11-29 19:40:04,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:40:04,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:40:04,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381608540] [2020-11-29 19:40:04,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:40:04,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:40:04,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:40:04,899 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 5 states. [2020-11-29 19:40:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:40:05,147 INFO L93 Difference]: Finished difference Result 185 states and 263 transitions. [2020-11-29 19:40:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 19:40:05,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 185 states and 263 transitions. [2020-11-29 19:40:05,161 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2020-11-29 19:40:05,169 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 185 states to 163 states and 241 transitions. [2020-11-29 19:40:05,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 163 [2020-11-29 19:40:05,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 163 [2020-11-29 19:40:05,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 163 states and 241 transitions. [2020-11-29 19:40:05,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:40:05,175 INFO L691 BuchiCegarLoop]: Abstraction has 163 states and 241 transitions. [2020-11-29 19:40:05,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states and 241 transitions. [2020-11-29 19:40:05,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 100. [2020-11-29 19:40:05,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-29 19:40:05,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 140 transitions. [2020-11-29 19:40:05,220 INFO L714 BuchiCegarLoop]: Abstraction has 100 states and 140 transitions. [2020-11-29 19:40:05,221 INFO L594 BuchiCegarLoop]: Abstraction has 100 states and 140 transitions. [2020-11-29 19:40:05,221 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:40:05,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 140 transitions. [2020-11-29 19:40:05,226 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 70 [2020-11-29 19:40:05,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:40:05,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:40:05,235 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 19:40:05,237 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:40:05,237 INFO L794 eck$LassoCheckResult]: Stem: 316#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 291#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 274#L409 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 275#L417 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 304#L132 assume 0 != main_~tmp~0; 320#L105 havoc test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 335#L368-1 [2020-11-29 19:40:05,238 INFO L796 eck$LassoCheckResult]: Loop: 335#L368-1 assume !false; 321#L166 assume test_~splverifierCounter~0 < 4; 322#L167 test_~tmp~1 := test_#t~nondet8;havoc test_#t~nondet8; 271#L175 assume !(0 != test_~tmp~1); 273#L175-1 test_~tmp___0~0 := test_#t~nondet9;havoc test_#t~nondet9; 366#L185 assume !(0 != test_~tmp___0~0); 365#L185-1 test_~tmp___2~0 := test_#t~nondet10;havoc test_#t~nondet10; 364#L195 assume 0 != test_~tmp___2~0; 361#L201-2 assume !(0 != ~pumpRunning~0); 360#L234 assume 0 != ~systemActive~0; 280#L241 havoc __utac_acc__Specification3_spec__1_#t~ret30, __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 281#L831 __utac_acc__Specification3_spec__1_#t~ret30 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret30;havoc __utac_acc__Specification3_spec__1_#t~ret30; 309#L362 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 310#L863 __utac_acc__Specification3_spec__1_#t~ret31 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 341#L368 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 335#L368-1 [2020-11-29 19:40:05,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:05,242 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 19:40:05,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:05,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528388260] [2020-11-29 19:40:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:05,303 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:05,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:05,379 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:40:05,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:05,380 INFO L82 PathProgramCache]: Analyzing trace with hash -2045467412, now seen corresponding path program 1 times [2020-11-29 19:40:05,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:05,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24186589] [2020-11-29 19:40:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:05,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:05,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:05,398 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:40:05,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:40:05,399 INFO L82 PathProgramCache]: Analyzing trace with hash 404117638, now seen corresponding path program 1 times [2020-11-29 19:40:05,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:40:05,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541169405] [2020-11-29 19:40:05,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:40:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:05,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:40:05,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:40:05,610 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:41:36,875 WARN L193 SmtUtils]: Spent 1.52 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 19:42:35,744 WARN L193 SmtUtils]: Spent 58.86 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 19:42:35,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:42:35 BoogieIcfgContainer [2020-11-29 19:42:35,979 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:42:35,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:42:35,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:42:35,980 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:42:35,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:40:03" (3/4) ... [2020-11-29 19:42:35,984 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 19:42:36,113 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d9d1b9da-ee59-402e-83bf-7552e83ec83f/bin/uautomizer/witness.graphml [2020-11-29 19:42:36,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:42:36,115 INFO L168 Benchmark]: Toolchain (without parser) took 154304.15 ms. Allocated memory was 88.1 MB in the beginning and 134.2 MB in the end (delta: 46.1 MB). Free memory was 56.9 MB in the beginning and 93.2 MB in the end (delta: -36.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:36,116 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 46.6 MB in the beginning and 46.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:42:36,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.43 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 56.5 MB in the beginning and 79.4 MB in the end (delta: -22.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:36,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.71 ms. Allocated memory is still 111.1 MB. Free memory was 79.4 MB in the beginning and 76.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:36,118 INFO L168 Benchmark]: Boogie Preprocessor took 39.88 ms. Allocated memory is still 111.1 MB. Free memory was 76.5 MB in the beginning and 75.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:42:36,118 INFO L168 Benchmark]: RCFGBuilder took 1126.95 ms. Allocated memory is still 111.1 MB. Free memory was 75.0 MB in the beginning and 81.3 MB in the end (delta: -6.2 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:36,119 INFO L168 Benchmark]: BuchiAutomizer took 152243.16 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 81.3 MB in the beginning and 95.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:36,120 INFO L168 Benchmark]: Witness Printer took 133.82 ms. Allocated memory is still 134.2 MB. Free memory was 95.2 MB in the beginning and 93.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:42:36,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 46.6 MB in the beginning and 46.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 675.43 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 56.5 MB in the beginning and 79.4 MB in the end (delta: -22.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.71 ms. Allocated memory is still 111.1 MB. Free memory was 79.4 MB in the beginning and 76.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.88 ms. Allocated memory is still 111.1 MB. Free memory was 76.5 MB in the beginning and 75.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1126.95 ms. Allocated memory is still 111.1 MB. Free memory was 75.0 MB in the beginning and 81.3 MB in the end (delta: -6.2 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 152243.16 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 81.3 MB in the beginning and 95.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. * Witness Printer took 133.82 ms. Allocated memory is still 134.2 MB. Free memory was 95.2 MB in the beginning and 93.2 MB in the end (delta: 2.0 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 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 5 locations. The remainder module has 100 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 152.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 151.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 63 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 100 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 106 SDtfs, 280 SDslu, 300 SDs, 0 SdLazy, 43 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 165]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=15070, NULL=0, NULL=0, NULL=0, NULL=15085, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7860262=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@533ab55d=0, NULL=1, NULL=0, NULL=15090, NULL=15074, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3967317=53, NULL=15083, NULL=15076, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@178bd08b=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e5c23a4=0, NULL=15095, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13da4ff2=0, NULL=0, tmp___1=0, NULL=15091, NULL=15094, NULL=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=15080, tmp=0, NULL=15086, NULL=15071, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, retValue_acc=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=15067, \result=1, head=0, pumpRunning=0, tmp=1, NULL=15081, \result=0, NULL=15082, NULL=15078, NULL=15072, NULL=0, NULL=15089, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5327be11=0, NULL=0, retValue_acc=1, NULL=0, NULL=15084, NULL=0, NULL=0, retValue_acc=1, NULL=15068, NULL=0, tmp___2=53, splverifierCounter=0, NULL=0, \result=0, NULL=15069, NULL=15075, NULL=15093, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27126db2=0, tmp___1=0, head=0, NULL=15073, NULL=15077, NULL=15079, NULL=15092, NULL=15087} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L226] int pumpRunning = 0; [L227] int systemActive = 1; [L591] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L413] int retValue_acc ; [L416] retValue_acc = 1 [L417] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L156] int splverifierCounter ; [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L160] int tmp___2 ; [L163] splverifierCounter = 0 Loop: [L165] COND TRUE 1 [L167] COND TRUE splverifierCounter < 4 [L173] tmp = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp)) [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___0)) [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) [L234] COND FALSE !(\read(pumpRunning)) [L241] COND TRUE \read(systemActive) [L354] int tmp ; [L355] int tmp___0 ; [L356] int tmp___1 ; [L827] int retValue_acc ; [L830] retValue_acc = methaneLevelCritical [L831] return (retValue_acc); [L360] tmp = isMethaneLevelCritical() [L362] COND FALSE !(\read(tmp)) [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L366] tmp___0 = getWaterLevel() [L368] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...