./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product31.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_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/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 be57a8909169924934bb5133fe0a47f53bebc905 .................................................................................................................................................................................................................................................................................................................................................................................. 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 20:33:56,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:33:56,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:33:56,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:33:56,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:33:56,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:33:56,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:33:56,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:33:56,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:33:56,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:33:56,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:33:56,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:33:56,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:33:56,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:33:56,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:33:56,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:33:56,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:33:56,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:33:56,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:33:56,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:33:56,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:33:56,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:33:56,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:33:56,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:33:56,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:33:56,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:33:56,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:33:56,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:33:56,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:33:56,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:33:56,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:33:56,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:33:56,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:33:56,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:33:56,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:33:56,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:33:56,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:33:56,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:33:56,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:33:56,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:33:56,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:33:56,721 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:33:56,759 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:33:56,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:33:56,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:33:56,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:33:56,762 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:33:56,762 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:33:56,763 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:33:56,763 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:33:56,764 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:33:56,764 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:33:56,765 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:33:56,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:33:56,765 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:33:56,766 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:33:56,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:33:56,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:33:56,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:33:56,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:33:56,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:33:56,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:33:56,774 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:33:56,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:33:56,777 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:33:56,777 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:33:56,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:33:56,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:33:56,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:33:56,779 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:33:56,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:33:56,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:33:56,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:33:56,785 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:33:56,786 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:33:56,788 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_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be57a8909169924934bb5133fe0a47f53bebc905 [2020-11-29 20:33:57,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:33:57,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:33:57,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:33:57,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:33:57,070 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:33:57,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c [2020-11-29 20:33:57,134 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/data/7f909c7a4/8b68495bcb704662b35d98fd807b977e/FLAG899675cd7 [2020-11-29 20:33:57,865 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:33:57,866 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/sv-benchmarks/c/product-lines/minepump_spec4_product31.cil.c [2020-11-29 20:33:57,886 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/data/7f909c7a4/8b68495bcb704662b35d98fd807b977e/FLAG899675cd7 [2020-11-29 20:33:58,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/data/7f909c7a4/8b68495bcb704662b35d98fd807b977e [2020-11-29 20:33:58,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:33:58,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:33:58,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:33:58,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:33:58,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:33:58,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:58,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f17407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58, skipping insertion in model container [2020-11-29 20:33:58,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:58,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:33:58,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:33:58,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:33:58,637 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:33:58,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:33:58,852 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:33:58,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58 WrapperNode [2020-11-29 20:33:58,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:33:58,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:33:58,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:33:58,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:33:58,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:58,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:59,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:33:59,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:33:59,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:33:59,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:33:59,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:59,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:59,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:59,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:59,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:59,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:59,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... [2020-11-29 20:33:59,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:33:59,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:33:59,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:33:59,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:33:59,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/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 20:33:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:33:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:33:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:33:59,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:34:00,560 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:34:00,560 INFO L298 CfgBuilder]: Removed 166 assume(true) statements. [2020-11-29 20:34:00,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:34:00 BoogieIcfgContainer [2020-11-29 20:34:00,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:34:00,566 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:34:00,566 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:34:00,570 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:34:00,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:34:00,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:33:58" (1/3) ... [2020-11-29 20:34:00,573 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a018649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:34:00, skipping insertion in model container [2020-11-29 20:34:00,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:34:00,573 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:58" (2/3) ... [2020-11-29 20:34:00,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a018649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:34:00, skipping insertion in model container [2020-11-29 20:34:00,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:34:00,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:34:00" (3/3) ... [2020-11-29 20:34:00,579 INFO L373 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product31.cil.c [2020-11-29 20:34:00,630 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:34:00,630 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:34:00,630 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:34:00,630 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:34:00,631 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:34:00,631 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:34:00,631 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:34:00,631 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:34:00,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states. [2020-11-29 20:34:00,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 20:34:00,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:34:00,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:34:00,741 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:34:00,741 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:34:00,741 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:34:00,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states. [2020-11-29 20:34:00,761 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2020-11-29 20:34:00,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:34:00,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:34:00,762 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:34:00,762 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:34:00,767 INFO L794 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 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; 49#L168true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 75#L176true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 86#L132true assume 0 != main_~tmp~0; 28#L105true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 7#L932-1true [2020-11-29 20:34:00,767 INFO L796 eck$LassoCheckResult]: Loop: 7#L932-1true assume !false; 24#L653true assume test_~splverifierCounter~0 < 4; 5#L654true test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 19#L662true assume !(0 != test_~tmp~4); 20#L662-1true test_~tmp___0~0 := test_#t~nondet55;havoc test_#t~nondet55; 50#L672true assume !(0 != test_~tmp___0~0); 52#L672-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 100#L682true assume 0 != test_~tmp___2~0; 87#L688-1true assume !(0 != ~pumpRunning~0); 16#L720true assume !(0 != ~systemActive~0); 45#L727true havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 91#L627true __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 3#L932true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 7#L932-1true [2020-11-29 20:34:00,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:34:00,774 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-11-29 20:34:00,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:34:00,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28081556] [2020-11-29 20:34:00,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:34:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:01,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:01,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:01,266 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:34:01,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:34:01,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1671709747, now seen corresponding path program 1 times [2020-11-29 20:34:01,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:34:01,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821683583] [2020-11-29 20:34:01,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:34:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:01,289 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:01,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:01,312 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:34:01,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:34:01,317 INFO L82 PathProgramCache]: Analyzing trace with hash 42569191, now seen corresponding path program 1 times [2020-11-29 20:34:01,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:34:01,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716798809] [2020-11-29 20:34:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:34:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:34:01,489 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 20:34:01,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716798809] [2020-11-29 20:34:01,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:34:01,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:34:01,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825781555] [2020-11-29 20:34:01,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:34:01,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:34:01,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:34:01,611 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 6 states. [2020-11-29 20:34:01,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:34:01,939 INFO L93 Difference]: Finished difference Result 252 states and 354 transitions. [2020-11-29 20:34:01,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:34:01,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 354 transitions. [2020-11-29 20:34:01,952 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 161 [2020-11-29 20:34:01,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 231 states and 333 transitions. [2020-11-29 20:34:01,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 231 [2020-11-29 20:34:01,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 231 [2020-11-29 20:34:01,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 231 states and 333 transitions. [2020-11-29 20:34:01,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:34:01,970 INFO L691 BuchiCegarLoop]: Abstraction has 231 states and 333 transitions. [2020-11-29 20:34:01,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states and 333 transitions. [2020-11-29 20:34:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 138. [2020-11-29 20:34:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-29 20:34:02,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 198 transitions. [2020-11-29 20:34:02,015 INFO L714 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2020-11-29 20:34:02,016 INFO L594 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2020-11-29 20:34:02,016 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:34:02,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 198 transitions. [2020-11-29 20:34:02,019 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2020-11-29 20:34:02,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:34:02,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:34:02,021 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:34:02,021 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:34:02,021 INFO L794 eck$LassoCheckResult]: Stem: 468#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(13);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(80, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(117, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(109, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(112, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(102, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 3 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(32, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 397#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; 398#L168 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 445#L176 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 465#L132 assume 0 != main_~tmp~0; 418#L105 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 378#L932-1 [2020-11-29 20:34:02,022 INFO L796 eck$LassoCheckResult]: Loop: 378#L932-1 assume !false; 384#L653 assume test_~splverifierCounter~0 < 4; 380#L654 test_~tmp~4 := test_#t~nondet54;havoc test_#t~nondet54; 381#L662 assume !(0 != test_~tmp~4); 403#L662-1 test_~tmp___0~0 := test_#t~nondet55;havoc test_#t~nondet55; 404#L672 assume !(0 != test_~tmp___0~0); 406#L672-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 447#L682 assume 0 != test_~tmp___2~0; 472#L688-1 assume !(0 != ~pumpRunning~0); 399#L720 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret59, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 394#L778 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret58, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 396#L752-1 assume !(0 != ~pumpRunning~0); 425#L727 havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 441#L627 __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 377#L932 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 378#L932-1 [2020-11-29 20:34:02,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:34:02,023 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-11-29 20:34:02,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:34:02,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151791658] [2020-11-29 20:34:02,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:34:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:02,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:02,118 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:02,136 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:34:02,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:34:02,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1950294335, now seen corresponding path program 1 times [2020-11-29 20:34:02,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:34:02,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431038144] [2020-11-29 20:34:02,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:34:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:02,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:02,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:02,151 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:34:02,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:34:02,152 INFO L82 PathProgramCache]: Analyzing trace with hash 104912089, now seen corresponding path program 1 times [2020-11-29 20:34:02,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:34:02,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094434982] [2020-11-29 20:34:02,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:34:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:02,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:34:02,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:34:02,344 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:35:26,187 WARN L193 SmtUtils]: Spent 1.40 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2020-11-29 20:36:27,509 WARN L193 SmtUtils]: Spent 1.02 m on a formula simplification that was a NOOP. DAG size: 433 [2020-11-29 20:36:27,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:36:27 BoogieIcfgContainer [2020-11-29 20:36:27,748 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:36:27,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:36:27,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:36:27,750 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:36:27,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:34:00" (3/4) ... [2020-11-29 20:36:27,753 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 20:36:27,810 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1fd6eb88-e2aa-41fd-b68f-018bb773fbd6/bin/uautomizer/witness.graphml [2020-11-29 20:36:27,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:36:27,812 INFO L168 Benchmark]: Toolchain (without parser) took 149671.12 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 61.5 MB in the beginning and 31.6 MB in the end (delta: 30.0 MB). Peak memory consumption was 71.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:27,813 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 34.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:36:27,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.97 ms. Allocated memory is still 92.3 MB. Free memory was 61.5 MB in the beginning and 58.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:27,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.09 ms. Allocated memory is still 92.3 MB. Free memory was 58.9 MB in the beginning and 55.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:27,815 INFO L168 Benchmark]: Boogie Preprocessor took 65.65 ms. Allocated memory is still 92.3 MB. Free memory was 55.6 MB in the beginning and 53.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:27,816 INFO L168 Benchmark]: RCFGBuilder took 1484.15 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.1 MB in the beginning and 50.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:27,817 INFO L168 Benchmark]: BuchiAutomizer took 147182.73 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 50.2 MB in the beginning and 33.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:27,818 INFO L168 Benchmark]: Witness Printer took 61.46 ms. Allocated memory is still 134.2 MB. Free memory was 33.5 MB in the beginning and 31.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:27,822 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 34.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 700.97 ms. Allocated memory is still 92.3 MB. Free memory was 61.5 MB in the beginning and 58.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 153.09 ms. Allocated memory is still 92.3 MB. Free memory was 58.9 MB in the beginning and 55.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.65 ms. Allocated memory is still 92.3 MB. Free memory was 55.6 MB in the beginning and 53.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1484.15 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.1 MB in the beginning and 50.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 147182.73 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 50.2 MB in the beginning and 33.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. * Witness Printer took 61.46 ms. Allocated memory is still 134.2 MB. Free memory was 33.5 MB in the beginning and 31.6 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 6 locations. The remainder module has 138 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 147.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 146.5s. Construction of modules took 0.2s. 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, 93 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 138 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 143 SDtfs, 550 SDslu, 659 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 652]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4580} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=4580, NULL=0, NULL=4590, NULL=0, NULL=0, NULL=4593, NULL=4608, NULL=4583, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37d53ebb=0, methaneLevelCritical=0, NULL=4605, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cffe56c=0, NULL=0, tmp=0, NULL=0, NULL=4597, NULL=0, tmp___1=0, NULL=4586, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7758ae9a=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dd8d760=0, NULL=4602, NULL=4607, NULL=4599, cleanupTimeShifts=4, NULL=4595, NULL=4581, tmp___0=0, NULL=4591, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=4587, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=4584, tmp___0=0, NULL=0, NULL=4604, \result=1, head=0, pumpRunning=0, tmp=1, NULL=4585, \result=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17160407=0, NULL=0, NULL=4601, NULL=0, NULL=0, NULL=4592, NULL=0, NULL=4598, retValue_acc=1, retValue_acc=1, tmp___2=61, NULL=0, tmp=1, NULL=4603, splverifierCounter=0, NULL=0, NULL=4588, NULL=4596, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19f467f1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@345dbb9f=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2df26fe9=0, head=0, NULL=0, tmp=0, NULL=4582, NULL=4606, NULL=0, NULL=0, NULL=0, NULL=4600, NULL=4594, NULL=4589, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2916e233=0} - 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; [L350] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L552] int waterLevel = 1; [L553] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L172] int retValue_acc ; [L175] retValue_acc = 1 [L176] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L643] int splverifierCounter ; [L644] int tmp ; [L645] int tmp___0 ; [L646] int tmp___1 ; [L647] int tmp___2 ; [L650] splverifierCounter = 0 Loop: [L652] COND TRUE 1 [L654] COND TRUE splverifierCounter < 4 [L660] tmp = __VERIFIER_nondet_int() [L662] COND FALSE !(\read(tmp)) [L670] tmp___0 = __VERIFIER_nondet_int() [L672] COND FALSE !(\read(tmp___0)) [L680] tmp___2 = __VERIFIER_nondet_int() [L682] COND TRUE \read(tmp___2) [L720] COND FALSE !(\read(pumpRunning)) [L727] COND TRUE \read(systemActive) [L775] int tmp ; [L778] COND FALSE !(\read(pumpRunning)) [L749] int tmp ; [L752] COND FALSE !(\read(pumpRunning)) [L925] int tmp ; [L926] int tmp___0 ; [L623] int retValue_acc ; [L626] retValue_acc = waterLevel [L627] return (retValue_acc); [L930] tmp = getWaterLevel() [L932] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...