./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/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 c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 .................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-02 13:37:27,840 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 13:37:27,840 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 13:37:27,846 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 13:37:27,846 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 13:37:27,847 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 13:37:27,848 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 13:37:27,848 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 13:37:27,849 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 13:37:27,850 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 13:37:27,850 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 13:37:27,850 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 13:37:27,851 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 13:37:27,851 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 13:37:27,851 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 13:37:27,852 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 13:37:27,852 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 13:37:27,853 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 13:37:27,854 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 13:37:27,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 13:37:27,855 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 13:37:27,856 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 13:37:27,857 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 13:37:27,857 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 13:37:27,857 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 13:37:27,857 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 13:37:27,858 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 13:37:27,858 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 13:37:27,859 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 13:37:27,859 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 13:37:27,859 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 13:37:27,860 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 13:37:27,860 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 13:37:27,860 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 13:37:27,860 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 13:37:27,861 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 13:37:27,861 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-02 13:37:27,868 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 13:37:27,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 13:37:27,869 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 13:37:27,869 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 13:37:27,869 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 13:37:27,869 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 13:37:27,870 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 13:37:27,870 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 13:37:27,871 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 13:37:27,871 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 13:37:27,871 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 13:37:27,872 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 13:37:27,872 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 13:37:27,872 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 13:37:27,872 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/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 -> c24c1e7ee4ec00cdeabebf427b1fca35e12bb483 [2018-12-02 13:37:27,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 13:37:27,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 13:37:27,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 13:37:27,898 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 13:37:27,898 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 13:37:27,899 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c [2018-12-02 13:37:27,934 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/data/fb8c5806f/e0c269cff12949c098444b91d71454b8/FLAGc5498d765 [2018-12-02 13:37:28,295 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 13:37:28,296 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/sv-benchmarks/c/product-lines/minepump_spec1_product53_false-unreach-call_false-termination.cil.c [2018-12-02 13:37:28,302 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/data/fb8c5806f/e0c269cff12949c098444b91d71454b8/FLAGc5498d765 [2018-12-02 13:37:28,674 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/data/fb8c5806f/e0c269cff12949c098444b91d71454b8 [2018-12-02 13:37:28,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 13:37:28,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 13:37:28,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 13:37:28,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 13:37:28,681 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 13:37:28,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:28" (1/1) ... [2018-12-02 13:37:28,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131a3f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:28, skipping insertion in model container [2018-12-02 13:37:28,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:37:28" (1/1) ... [2018-12-02 13:37:28,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 13:37:28,721 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 13:37:28,917 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:37:28,961 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 13:37:29,014 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:37:29,031 INFO L195 MainTranslator]: Completed translation [2018-12-02 13:37:29,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29 WrapperNode [2018-12-02 13:37:29,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 13:37:29,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 13:37:29,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 13:37:29,032 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 13:37:29,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... [2018-12-02 13:37:29,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... [2018-12-02 13:37:29,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 13:37:29,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 13:37:29,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 13:37:29,073 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 13:37:29,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... [2018-12-02 13:37:29,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... [2018-12-02 13:37:29,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... [2018-12-02 13:37:29,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... [2018-12-02 13:37:29,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... [2018-12-02 13:37:29,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... [2018-12-02 13:37:29,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... [2018-12-02 13:37:29,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 13:37:29,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 13:37:29,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 13:37:29,107 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 13:37:29,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/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 [2018-12-02 13:37:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 13:37:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 13:37:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 13:37:29,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 13:37:29,606 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 13:37:29,607 INFO L280 CfgBuilder]: Removed 276 assue(true) statements. [2018-12-02 13:37:29,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:29 BoogieIcfgContainer [2018-12-02 13:37:29,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 13:37:29,608 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 13:37:29,608 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 13:37:29,611 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 13:37:29,611 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 13:37:29,611 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 01:37:28" (1/3) ... [2018-12-02 13:37:29,612 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7380782c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:37:29, skipping insertion in model container [2018-12-02 13:37:29,612 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 13:37:29,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:37:29" (2/3) ... [2018-12-02 13:37:29,613 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7380782c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:37:29, skipping insertion in model container [2018-12-02 13:37:29,613 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 13:37:29,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:29" (3/3) ... [2018-12-02 13:37:29,614 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product53_false-unreach-call_false-termination.cil.c [2018-12-02 13:37:29,657 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 13:37:29,657 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 13:37:29,657 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 13:37:29,657 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 13:37:29,657 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 13:37:29,657 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 13:37:29,658 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 13:37:29,658 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 13:37:29,658 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 13:37:29,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states. [2018-12-02 13:37:29,688 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2018-12-02 13:37:29,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:37:29,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:37:29,694 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-02 13:37:29,694 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:37:29,694 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 13:37:29,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states. [2018-12-02 13:37:29,698 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2018-12-02 13:37:29,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:37:29,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:37:29,699 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-02 13:37:29,699 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:37:29,704 INFO L794 eck$LassoCheckResult]: Stem: 148#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #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.alloc(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.alloc(13);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1); 32#L-1true havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 163#L864true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 167#L872true main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 138#L534true assume 0 != main_~tmp~4; 114#L507true havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 20#L51-1true [2018-12-02 13:37:29,704 INFO L796 eck$LassoCheckResult]: Loop: 20#L51-1true assume !false; 92#L788true assume test_~splverifierCounter~0 < 4; 28#L789true test_~tmp~10 := test_#t~nondet60;havoc test_#t~nondet60; 35#L797true assume !(0 != test_~tmp~10); 38#L797-1true test_~tmp___0~3 := test_#t~nondet61;havoc test_#t~nondet61; 110#L807true assume !(0 != test_~tmp___0~3); 113#L807-1true test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 171#L817true assume 0 != test_~tmp___2~0; 142#L823-2true assume !(0 != ~pumpRunning~0); 172#L561true assume !(0 != ~systemActive~0); 82#L568true havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 10#L921-1true __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 27#L51true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 20#L51-1true [2018-12-02 13:37:29,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:29,708 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-12-02 13:37:29,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:29,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:29,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:29,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:37:29,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:29,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:29,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1676481278, now seen corresponding path program 1 times [2018-12-02 13:37:29,840 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:29,840 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:29,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:29,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:37:29,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:29,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:29,849 INFO L82 PathProgramCache]: Analyzing trace with hash 37797660, now seen corresponding path program 1 times [2018-12-02 13:37:29,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:29,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:29,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:29,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:37:29,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:37:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:37:29,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:37:29,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 13:37:29,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 13:37:29,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-02 13:37:29,979 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 6 states. [2018-12-02 13:37:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:37:30,032 INFO L93 Difference]: Finished difference Result 186 states and 274 transitions. [2018-12-02 13:37:30,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 13:37:30,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 274 transitions. [2018-12-02 13:37:30,036 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2018-12-02 13:37:30,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 179 states and 267 transitions. [2018-12-02 13:37:30,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2018-12-02 13:37:30,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2018-12-02 13:37:30,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 267 transitions. [2018-12-02 13:37:30,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 13:37:30,042 INFO L705 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2018-12-02 13:37:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 267 transitions. [2018-12-02 13:37:30,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2018-12-02 13:37:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-12-02 13:37:30,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 267 transitions. [2018-12-02 13:37:30,065 INFO L728 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2018-12-02 13:37:30,066 INFO L608 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2018-12-02 13:37:30,066 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 13:37:30,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 267 transitions. [2018-12-02 13:37:30,067 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2018-12-02 13:37:30,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:37:30,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:37:30,068 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-02 13:37:30,068 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:37:30,068 INFO L794 eck$LassoCheckResult]: Stem: 557#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #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.alloc(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.alloc(13);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1); 437#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 438#L864 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 560#L872 main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 553#L534 assume 0 != main_~tmp~4; 537#L507 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 420#L51-1 [2018-12-02 13:37:30,068 INFO L796 eck$LassoCheckResult]: Loop: 420#L51-1 assume !false; 421#L788 assume test_~splverifierCounter~0 < 4; 433#L789 test_~tmp~10 := test_#t~nondet60;havoc test_#t~nondet60; 434#L797 assume !(0 != test_~tmp~10); 446#L797-1 test_~tmp___0~3 := test_#t~nondet61;havoc test_#t~nondet61; 451#L807 assume !(0 != test_~tmp___0~3); 530#L807-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 535#L817 assume 0 != test_~tmp___2~0; 551#L823-2 assume !(0 != ~pumpRunning~0); 527#L561 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 517#L645 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 518#L619-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret38, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 467#L593-3 assume !(0 == ~pumpRunning~0); 468#L568 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 405#L921-1 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 406#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 420#L51-1 [2018-12-02 13:37:30,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:30,068 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-12-02 13:37:30,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:30,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:30,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:37:30,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:30,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:30,098 INFO L82 PathProgramCache]: Analyzing trace with hash -270276490, now seen corresponding path program 1 times [2018-12-02 13:37:30,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:30,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:30,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,099 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 13:37:30,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:37:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:37:30,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 13:37:30,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 13:37:30,118 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 13:37:30,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 13:37:30,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 13:37:30,118 INFO L87 Difference]: Start difference. First operand 179 states and 267 transitions. cyclomatic complexity: 90 Second operand 3 states. [2018-12-02 13:37:30,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 13:37:30,189 INFO L93 Difference]: Finished difference Result 184 states and 255 transitions. [2018-12-02 13:37:30,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 13:37:30,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 255 transitions. [2018-12-02 13:37:30,190 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2018-12-02 13:37:30,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 255 transitions. [2018-12-02 13:37:30,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2018-12-02 13:37:30,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2018-12-02 13:37:30,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 255 transitions. [2018-12-02 13:37:30,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 13:37:30,193 INFO L705 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2018-12-02 13:37:30,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 255 transitions. [2018-12-02 13:37:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-12-02 13:37:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-12-02 13:37:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2018-12-02 13:37:30,197 INFO L728 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2018-12-02 13:37:30,197 INFO L608 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2018-12-02 13:37:30,198 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 13:37:30,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 255 transitions. [2018-12-02 13:37:30,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2018-12-02 13:37:30,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 13:37:30,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 13:37:30,199 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-02 13:37:30,199 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 13:37:30,199 INFO L794 eck$LassoCheckResult]: Stem: 897#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string20.base, #t~string20.offset := #Ultimate.alloc(30);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(9);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(21);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(30);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(9);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(21);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(25);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #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.alloc(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string66.base, #t~string66.offset := #Ultimate.alloc(13);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1); 798#L-1 havoc main_#res;havoc main_#t~ret37, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 799#L864 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 901#L872 main_#t~ret37 := valid_product_#res;main_~tmp~4 := main_#t~ret37;havoc main_#t~ret37; 893#L534 assume 0 != main_~tmp~4; 878#L507 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 784#L51-1 [2018-12-02 13:37:30,199 INFO L796 eck$LassoCheckResult]: Loop: 784#L51-1 assume !false; 785#L788 assume test_~splverifierCounter~0 < 4; 792#L789 test_~tmp~10 := test_#t~nondet60;havoc test_#t~nondet60; 793#L797 assume !(0 != test_~tmp~10); 806#L797-1 test_~tmp___0~3 := test_#t~nondet61;havoc test_#t~nondet61; 808#L807 assume !(0 != test_~tmp___0~3); 872#L807-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 877#L817 assume 0 != test_~tmp___2~0; 891#L823-2 assume !(0 != ~pumpRunning~0); 894#L561 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 860#L645 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 861#L619-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret38, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 822#L593-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 823#L961-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 870#L966-3 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 827#L747-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 828#L747-11 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 766#L753-3 processEnvironment__wrappee__highWaterSensor_#t~ret38 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret38;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38; 767#L597-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 851#L568 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 772#L921-1 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 773#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 784#L51-1 [2018-12-02 13:37:30,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:30,200 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-12-02 13:37:30,200 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:30,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:30,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:37:30,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:30,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:30,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1151634370, now seen corresponding path program 1 times [2018-12-02 13:37:30,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:30,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:30,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,226 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 13:37:30,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:30,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:37:30,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1890027800, now seen corresponding path program 1 times [2018-12-02 13:37:30,233 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 13:37:30,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 13:37:30,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 13:37:30,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 13:37:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:37:33,613 WARN L180 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-12-02 13:37:35,249 WARN L180 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 423 [2018-12-02 13:37:35,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 01:37:35 BoogieIcfgContainer [2018-12-02 13:37:35,283 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 13:37:35,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 13:37:35,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 13:37:35,283 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 13:37:35,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:37:29" (3/4) ... [2018-12-02 13:37:35,285 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-02 13:37:35,316 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_12d523af-6275-4fa7-8da4-d50f0a793f37/bin-2019/uautomizer/witness.graphml [2018-12-02 13:37:35,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 13:37:35,317 INFO L168 Benchmark]: Toolchain (without parser) took 6640.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 950.6 MB in the beginning and 927.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 185.0 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:35,318 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:37:35,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:35,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:35,318 INFO L168 Benchmark]: Boogie Preprocessor took 33.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:35,319 INFO L168 Benchmark]: RCFGBuilder took 500.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:35,319 INFO L168 Benchmark]: BuchiAutomizer took 5675.00 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.0 GB in the beginning and 933.4 MB in the end (delta: 77.8 MB). Peak memory consumption was 229.2 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:35,319 INFO L168 Benchmark]: Witness Printer took 33.56 ms. Allocated memory is still 1.2 GB. Free memory was 933.4 MB in the beginning and 927.1 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2018-12-02 13:37:35,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 353.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 500.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5675.00 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.0 GB in the beginning and 933.4 MB in the end (delta: 77.8 MB). Peak memory consumption was 229.2 MB. Max. memory is 11.5 GB. * Witness Printer took 33.56 ms. Allocated memory is still 1.2 GB. Free memory was 933.4 MB in the beginning and 927.1 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 184 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 5.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 184 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 472 SDtfs, 946 SDslu, 77 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 787]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=0, NULL=40, retValue_acc=0, NULL=0, NULL=0, NULL=31, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=14, NULL=0, NULL=36, tmp=0, tmp___1=0, NULL=18, retValue_acc=0, NULL=22, NULL=26, tmp___0=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4065fe9c=0, NULL=12, NULL=19, NULL=16, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@158d9537=0, NULL=11, tmp=0, NULL=28, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d578efb=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29af1c30=0, NULL=0, systemActive=1, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e9830b9=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52cc79bf=0, NULL=0, \result=0, NULL=37, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=39, NULL=38, \result=0, NULL=24, NULL=35, tmp=1, NULL=34, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53ec72ad=0, NULL=0, NULL=0, NULL=0, tmp=0, \result=1, retValue_acc=1, NULL=23, NULL=0, NULL=0, tmp=0, tmp___0=0, tmp=1, retValue_acc=1, tmp___2=56, NULL=17, splverifierCounter=0, \result=0, NULL=29, head=0, NULL=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d0b7dd5=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4218aa10=56, NULL=15, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a3be77=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d8979a2=0, NULL=0, NULL=8, NULL=33} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L554] int pumpRunning = 0; [L555] int systemActive = 1; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; [L525] int retValue_acc ; [L526] int tmp ; [L868] int retValue_acc ; [L871] retValue_acc = 1 [L872] return (retValue_acc); [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) [L778] int splverifierCounter ; [L779] int tmp ; [L780] int tmp___0 ; [L781] int tmp___1 ; [L782] int tmp___2 ; [L785] splverifierCounter = 0 Loop: [L787] COND TRUE 1 [L789] COND TRUE splverifierCounter < 4 [L795] tmp = __VERIFIER_nondet_int() [L797] COND FALSE !(\read(tmp)) [L805] tmp___0 = __VERIFIER_nondet_int() [L807] COND FALSE !(\read(tmp___0)) [L815] tmp___2 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___2) [L561] COND FALSE !(\read(pumpRunning)) [L568] COND TRUE \read(systemActive) [L642] int tmp ; [L645] COND FALSE !(\read(pumpRunning)) [L616] int tmp ; [L619] COND FALSE !(\read(pumpRunning)) [L590] int tmp ; [L593] COND TRUE ! pumpRunning [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; [L958] int retValue_acc ; [L961] COND TRUE waterLevel < 2 [L962] retValue_acc = 1 [L963] return (retValue_acc); [L745] tmp = isHighWaterSensorDry() [L747] COND TRUE \read(tmp) [L748] tmp___0 = 0 [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); [L595] tmp = isHighWaterLevel() [L597] COND FALSE !(\read(tmp)) [L44] int tmp ; [L45] int tmp___0 ; [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); [L49] tmp = isMethaneLevelCritical() [L51] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...