./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product08.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_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/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 3b38310287d90f8069af2c9350481a8126041a79 ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:20:33,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:20:33,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:20:33,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:20:33,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:20:33,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:20:33,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:20:33,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:20:33,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:20:33,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:20:33,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:20:33,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:20:33,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:20:33,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:20:33,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:20:33,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:20:33,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:20:33,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:20:33,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:20:33,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:20:33,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:20:33,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:20:33,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:20:33,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:20:33,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:20:33,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:20:33,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:20:33,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:20:33,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:20:33,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:20:33,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:20:33,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:20:33,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:20:33,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:20:33,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:20:33,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:20:33,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:20:33,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:20:33,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:20:33,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:20:33,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:20:33,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:20:33,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:20:33,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:20:33,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:20:33,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:20:33,614 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:20:33,615 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:20:33,615 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:20:33,615 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:20:33,615 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:20:33,616 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:20:33,617 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:20:33,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:20:33,617 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:20:33,617 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:20:33,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:20:33,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:20:33,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:20:33,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:20:33,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:20:33,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:20:33,619 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:20:33,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:20:33,620 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:20:33,620 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:20:33,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:20:33,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:20:33,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:20:33,621 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:20:33,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:20:33,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:20:33,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:20:33,623 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:20:33,625 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:20:33,625 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_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b38310287d90f8069af2c9350481a8126041a79 [2020-11-29 18:20:33,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:20:33,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:20:33,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:20:33,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:20:33,970 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:20:33,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c [2020-11-29 18:20:34,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/data/1be56d852/9580d83549764c1187d7490b6158fe65/FLAG08d5532ec [2020-11-29 18:20:34,583 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:20:34,584 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c [2020-11-29 18:20:34,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/data/1be56d852/9580d83549764c1187d7490b6158fe65/FLAG08d5532ec [2020-11-29 18:20:34,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/data/1be56d852/9580d83549764c1187d7490b6158fe65 [2020-11-29 18:20:34,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:20:34,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:20:34,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:20:34,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:20:34,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:20:34,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:34" (1/1) ... [2020-11-29 18:20:34,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5fefc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:34, skipping insertion in model container [2020-11-29 18:20:34,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:20:34" (1/1) ... [2020-11-29 18:20:34,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:20:34,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:20:35,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:20:35,279 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:20:35,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:20:35,381 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:20:35,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35 WrapperNode [2020-11-29 18:20:35,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:20:35,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:20:35,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:20:35,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:20:35,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... [2020-11-29 18:20:35,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... [2020-11-29 18:20:35,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:20:35,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:20:35,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:20:35,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:20:35,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... [2020-11-29 18:20:35,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... [2020-11-29 18:20:35,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... [2020-11-29 18:20:35,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... [2020-11-29 18:20:35,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... [2020-11-29 18:20:35,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... [2020-11-29 18:20:35,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... [2020-11-29 18:20:35,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:20:35,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:20:35,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:20:35,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:20:35,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:20:35,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:20:35,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:20:35,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:20:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:20:36,591 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:20:36,592 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-29 18:20:36,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:36 BoogieIcfgContainer [2020-11-29 18:20:36,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:20:36,595 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:20:36,595 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:20:36,598 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:20:36,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:20:36,599 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:20:34" (1/3) ... [2020-11-29 18:20:36,600 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@701f01fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:20:36, skipping insertion in model container [2020-11-29 18:20:36,600 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:20:36,600 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:20:35" (2/3) ... [2020-11-29 18:20:36,601 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@701f01fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:20:36, skipping insertion in model container [2020-11-29 18:20:36,601 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:20:36,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:36" (3/3) ... [2020-11-29 18:20:36,602 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product08.cil.c [2020-11-29 18:20:36,637 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:20:36,637 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:20:36,638 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:20:36,638 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:20:36,638 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:20:36,638 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:20:36,638 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:20:36,638 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:20:36,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states. [2020-11-29 18:20:36,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 18:20:36,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:36,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:36,684 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:20:36,684 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:36,684 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:20:36,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states. [2020-11-29 18:20:36,690 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2020-11-29 18:20:36,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:36,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:36,691 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:20:36,691 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:36,696 INFO L794 eck$LassoCheckResult]: Stem: 37#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 6#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 24#L153true havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 40#L161true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 69#L251true assume 0 != main_~tmp~0; 46#L227true havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 53#L641-1true [2020-11-29 18:20:36,696 INFO L796 eck$LassoCheckResult]: Loop: 53#L641-1true assume !false; 8#L830true assume test_~splverifierCounter~0 < 4; 54#L831true test_~tmp~6 := test_#t~nondet74;havoc test_#t~nondet74; 59#L839true assume !(0 != test_~tmp~6); 61#L839-1true test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 44#L849true assume !(0 != test_~tmp___0~1); 47#L849-1true test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 20#L859true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 30#L867-1true assume !(0 != ~pumpRunning~0); 36#L670true assume !(0 != ~systemActive~0); 48#L677true havoc __utac_acc__Specification4_spec__1_#t~ret54, __utac_acc__Specification4_spec__1_#t~ret55, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 70#L123true __utac_acc__Specification4_spec__1_#t~ret54 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret54;havoc __utac_acc__Specification4_spec__1_#t~ret54; 51#L641true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 53#L641-1true [2020-11-29 18:20:36,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:36,702 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 18:20:36,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:36,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725902612] [2020-11-29 18:20:36,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,145 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:37,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:37,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1672356210, now seen corresponding path program 1 times [2020-11-29 18:20:37,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:37,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131310362] [2020-11-29 18:20:37,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:20:37,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:20:37,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131310362] [2020-11-29 18:20:37,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:20:37,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:20:37,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151876845] [2020-11-29 18:20:37,232 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 18:20:37,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:20:37,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:20:37,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:20:37,250 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states. [2020-11-29 18:20:37,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:20:37,318 INFO L93 Difference]: Finished difference Result 130 states and 180 transitions. [2020-11-29 18:20:37,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:20:37,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 180 transitions. [2020-11-29 18:20:37,329 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 82 [2020-11-29 18:20:37,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 116 states and 165 transitions. [2020-11-29 18:20:37,336 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2020-11-29 18:20:37,337 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2020-11-29 18:20:37,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 165 transitions. [2020-11-29 18:20:37,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:20:37,339 INFO L691 BuchiCegarLoop]: Abstraction has 116 states and 165 transitions. [2020-11-29 18:20:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 165 transitions. [2020-11-29 18:20:37,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-11-29 18:20:37,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-29 18:20:37,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2020-11-29 18:20:37,393 INFO L714 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-11-29 18:20:37,393 INFO L594 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-11-29 18:20:37,393 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:20:37,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2020-11-29 18:20:37,402 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2020-11-29 18:20:37,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:20:37,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:20:37,403 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:20:37,403 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:20:37,403 INFO L794 eck$LassoCheckResult]: Stem: 247#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(21);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 216#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0; 217#L153 havoc valid_product_#res;havoc valid_product_~retValue_acc~3;havoc valid_product_~retValue_acc~3;valid_product_~retValue_acc~3 := 1;valid_product_#res := valid_product_~retValue_acc~3; 239#L161 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 254#L251 assume 0 != main_~tmp~0; 261#L227 havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 262#L641-1 [2020-11-29 18:20:37,404 INFO L796 eck$LassoCheckResult]: Loop: 262#L641-1 assume !false; 219#L830 assume test_~splverifierCounter~0 < 4; 220#L831 test_~tmp~6 := test_#t~nondet74;havoc test_#t~nondet74; 282#L839 assume !(0 != test_~tmp~6); 256#L839-1 test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 293#L849 assume !(0 != test_~tmp___0~1); 263#L849-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 236#L859 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 237#L867-1 assume !(0 != ~pumpRunning~0); 232#L670 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 244#L702 assume !(0 != ~pumpRunning~0); 264#L677 havoc __utac_acc__Specification4_spec__1_#t~ret54, __utac_acc__Specification4_spec__1_#t~ret55, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 265#L123 __utac_acc__Specification4_spec__1_#t~ret54 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret54;havoc __utac_acc__Specification4_spec__1_#t~ret54; 286#L641 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 262#L641-1 [2020-11-29 18:20:37,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:37,404 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 18:20:37,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:37,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418972738] [2020-11-29 18:20:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,485 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,572 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:37,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:37,577 INFO L82 PathProgramCache]: Analyzing trace with hash -323963299, now seen corresponding path program 1 times [2020-11-29 18:20:37,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:37,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276483573] [2020-11-29 18:20:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,593 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:20:37,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:20:37,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1279076227, now seen corresponding path program 1 times [2020-11-29 18:20:37,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:20:37,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942460066] [2020-11-29 18:20:37,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:20:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:20:37,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:20:37,743 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:21:57,512 WARN L193 SmtUtils]: Spent 1.33 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 18:22:54,989 WARN L193 SmtUtils]: Spent 57.47 s on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 18:22:55,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:22:55 BoogieIcfgContainer [2020-11-29 18:22:55,486 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:22:55,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:22:55,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:22:55,487 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:22:55,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:20:36" (3/4) ... [2020-11-29 18:22:55,491 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 18:22:55,548 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3cf99833-2d1d-49b0-8755-71cf0d51b8f0/bin/uautomizer/witness.graphml [2020-11-29 18:22:55,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:22:55,550 INFO L168 Benchmark]: Toolchain (without parser) took 140615.12 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 63.7 MB in the beginning and 56.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:22:55,551 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory is still 81.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:22:55,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.83 ms. Allocated memory is still 104.9 MB. Free memory was 63.4 MB in the beginning and 43.3 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:22:55,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.38 ms. Allocated memory is still 104.9 MB. Free memory was 43.3 MB in the beginning and 40.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:22:55,552 INFO L168 Benchmark]: Boogie Preprocessor took 48.07 ms. Allocated memory is still 104.9 MB. Free memory was 40.4 MB in the beginning and 38.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:22:55,553 INFO L168 Benchmark]: RCFGBuilder took 1092.22 ms. Allocated memory is still 104.9 MB. Free memory was 38.3 MB in the beginning and 62.4 MB in the end (delta: -24.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:22:55,553 INFO L168 Benchmark]: BuchiAutomizer took 138891.73 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 62.0 MB in the beginning and 59.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 76.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:22:55,554 INFO L168 Benchmark]: Witness Printer took 61.72 ms. Allocated memory is still 151.0 MB. Free memory was 59.7 MB in the beginning and 56.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:22:55,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 104.9 MB. Free memory is still 81.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 445.83 ms. Allocated memory is still 104.9 MB. Free memory was 63.4 MB in the beginning and 43.3 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.38 ms. Allocated memory is still 104.9 MB. Free memory was 43.3 MB in the beginning and 40.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.07 ms. Allocated memory is still 104.9 MB. Free memory was 40.4 MB in the beginning and 38.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1092.22 ms. Allocated memory is still 104.9 MB. Free memory was 38.3 MB in the beginning and 62.4 MB in the end (delta: -24.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 138891.73 ms. Allocated memory was 104.9 MB in the beginning and 151.0 MB in the end (delta: 46.1 MB). Free memory was 62.0 MB in the beginning and 59.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 76.1 MB. Max. memory is 16.1 GB. * Witness Printer took 61.72 ms. Allocated memory is still 151.0 MB. Free memory was 59.7 MB in the beginning and 56.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 114 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 138.5s. 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 114 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 88 SDslu, 80 SDs, 0 SdLazy, 10 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: 829]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31905} State at position 1 is {NULL=0, NULL=0, NULL=31907, NULL=0, NULL=0, NULL=31905, NULL=31930, NULL=0, retValue_acc=0, NULL=31916, NULL=0, NULL=0, NULL=31906, NULL=31927, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63e5f5=0, methaneLevelCritical=0, NULL=31919, NULL=31908, NULL=0, NULL=0, NULL=31925, tmp=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=31926, cleanupTimeShifts=4, NULL=31931, NULL=31909, NULL=31923, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60e5cc31=0, NULL=0, systemActive=1, waterLevel=1, NULL=31912, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=31921, NULL=0, NULL=31924, NULL=0, NULL=31918, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=31915, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c5c1197=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10aa1cf2=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6eca53a4=66, NULL=31922, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4467dac1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6be1df24=0, retValue_acc=1, NULL=31933, NULL=31928, NULL=0, tmp=1, NULL=0, NULL=31929, tmp___2=66, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67c9fbc5=0, NULL=31913, NULL=31932, NULL=31911, head=0, tmp=0, NULL=0, NULL=0, NULL=31914, NULL=31917, NULL=0, NULL=31920, NULL=31910} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L166] int cleanupTimeShifts = 4; [L434] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L663] int pumpRunning = 0; [L664] int systemActive = 1; [L242] int retValue_acc ; [L243] int tmp ; [L157] int retValue_acc ; [L160] retValue_acc = 1 [L161] return (retValue_acc); [L249] tmp = valid_product() [L251] COND TRUE \read(tmp) [L820] int splverifierCounter ; [L821] int tmp ; [L822] int tmp___0 ; [L823] int tmp___1 ; [L824] int tmp___2 ; [L827] splverifierCounter = 0 Loop: [L829] COND TRUE 1 [L831] COND TRUE splverifierCounter < 4 [L837] tmp = __VERIFIER_nondet_int() [L839] COND FALSE !(\read(tmp)) [L847] tmp___0 = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp___0)) [L857] tmp___2 = __VERIFIER_nondet_int() [L859] COND TRUE \read(tmp___2) [L814] systemActive = 1 [L670] COND FALSE !(\read(pumpRunning)) [L677] COND TRUE \read(systemActive) [L699] int tmp ; [L702] COND FALSE !(\read(pumpRunning)) [L634] int tmp ; [L635] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L639] tmp = getWaterLevel() [L641] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...