./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8094c843e4d897e4501a7b90ca3369f741555e9e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-8bd4bc6 [2020-07-29 02:52:40,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:52:40,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:52:40,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:52:40,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:52:40,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:52:40,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:52:40,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:52:40,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:52:40,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:52:40,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:52:40,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:52:40,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:52:40,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:52:40,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:52:40,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:52:40,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:52:40,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:52:40,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:52:40,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:52:40,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:52:40,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:52:40,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:52:40,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:52:40,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:52:40,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:52:40,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:52:40,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:52:40,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:52:40,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:52:40,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:52:40,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:52:40,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:52:40,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:52:40,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:52:40,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:52:40,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:52:40,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:52:40,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:52:40,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:52:40,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:52:40,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:52:40,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:52:40,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:52:40,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:52:40,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:52:40,820 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:52:40,820 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:52:40,820 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:52:40,821 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:52:40,822 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:52:40,822 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:52:40,823 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:52:40,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:52:40,824 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:52:40,824 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:52:40,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:52:40,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:52:40,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:52:40,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:52:40,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:52:40,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:52:40,826 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:52:40,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:52:40,827 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:52:40,827 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:52:40,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:52:40,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:52:40,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:52:40,828 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:52:40,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:52:40,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:52:40,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:52:40,831 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:52:40,832 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:52:40,833 INFO L138 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8094c843e4d897e4501a7b90ca3369f741555e9e [2020-07-29 02:52:41,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:52:41,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:52:41,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:52:41,175 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:52:41,176 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:52:41,177 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2020-07-29 02:52:41,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b2a9755d/400c2a859f924c6cb286d19a9cac76d6/FLAG40390ab87 [2020-07-29 02:52:41,764 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:52:41,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2020-07-29 02:52:41,784 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b2a9755d/400c2a859f924c6cb286d19a9cac76d6/FLAG40390ab87 [2020-07-29 02:52:42,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b2a9755d/400c2a859f924c6cb286d19a9cac76d6 [2020-07-29 02:52:42,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:52:42,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:52:42,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:52:42,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:52:42,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:52:42,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f271fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42, skipping insertion in model container [2020-07-29 02:52:42,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:52:42,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:52:42,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:52:42,635 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:52:42,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:52:42,827 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:52:42,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42 WrapperNode [2020-07-29 02:52:42,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:52:42,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:52:42,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:52:42,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:52:42,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:52:42,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:52:42,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:52:42,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:52:42,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... [2020-07-29 02:52:42,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:52:42,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:52:42,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:52:42,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:52:42,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-29 02:52:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 02:52:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 02:52:43,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:52:43,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:52:44,235 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:52:44,235 INFO L295 CfgBuilder]: Removed 102 assume(true) statements. [2020-07-29 02:52:44,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:52:44 BoogieIcfgContainer [2020-07-29 02:52:44,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:52:44,241 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:52:44,242 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:52:44,245 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:52:44,247 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:52:44,247 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:52:42" (1/3) ... [2020-07-29 02:52:44,248 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a49e8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:52:44, skipping insertion in model container [2020-07-29 02:52:44,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:52:44,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:52:42" (2/3) ... [2020-07-29 02:52:44,249 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a49e8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:52:44, skipping insertion in model container [2020-07-29 02:52:44,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:52:44,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:52:44" (3/3) ... [2020-07-29 02:52:44,252 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-07-29 02:52:44,305 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:52:44,306 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:52:44,306 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:52:44,306 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:52:44,306 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:52:44,307 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:52:44,307 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:52:44,307 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:52:44,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-07-29 02:52:44,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-07-29 02:52:44,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:52:44,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:52:44,387 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:52:44,387 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:52:44,387 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:52:44,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2020-07-29 02:52:44,417 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2020-07-29 02:52:44,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:52:44,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:52:44,419 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:52:44,419 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:52:44,427 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 3#L420true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 27#L428true main_#t~ret23 := valid_product_#res;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; 30#L384true assume 0 != main_~tmp~3; 16#L358true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 24#L911-1true [2020-07-29 02:52:44,428 INFO L796 eck$LassoCheckResult]: Loop: 24#L911-1true assume !false; 79#L57true assume test_~splverifierCounter~0 < 4; 4#L58true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 39#L66true assume !(0 != test_~tmp~0); 37#L66-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 12#L76true assume !(0 != test_~tmp___0~0); 10#L76-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 74#L86true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 65#L94-1true assume !(0 != ~pumpRunning~0); 19#L131true assume !(0 != ~systemActive~0); 8#L138true havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 71#L884true __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 45#L911true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 24#L911-1true [2020-07-29 02:52:44,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:52:44,441 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2020-07-29 02:52:44,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:52:44,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009449641] [2020-07-29 02:52:44,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:52:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:44,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:44,801 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:44,840 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:52:44,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:52:44,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1671986804, now seen corresponding path program 1 times [2020-07-29 02:52:44,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:52:44,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951859194] [2020-07-29 02:52:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:52:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:52:44,930 INFO L280 TraceCheckUtils]: 0: Hoare triple {83#true} assume !false; {83#true} is VALID [2020-07-29 02:52:44,931 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} assume test_~splverifierCounter~0 < 4; {83#true} is VALID [2020-07-29 02:52:44,931 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {83#true} is VALID [2020-07-29 02:52:44,932 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} assume !(0 != test_~tmp~0); {83#true} is VALID [2020-07-29 02:52:44,932 INFO L280 TraceCheckUtils]: 4: Hoare triple {83#true} test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {83#true} is VALID [2020-07-29 02:52:44,933 INFO L280 TraceCheckUtils]: 5: Hoare triple {83#true} assume !(0 != test_~tmp___0~0); {83#true} is VALID [2020-07-29 02:52:44,933 INFO L280 TraceCheckUtils]: 6: Hoare triple {83#true} test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {83#true} is VALID [2020-07-29 02:52:44,935 INFO L280 TraceCheckUtils]: 7: Hoare triple {83#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {85#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:52:44,936 INFO L280 TraceCheckUtils]: 8: Hoare triple {85#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {85#(<= 1 ~systemActive~0)} is VALID [2020-07-29 02:52:44,937 INFO L280 TraceCheckUtils]: 9: Hoare triple {85#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {84#false} is VALID [2020-07-29 02:52:44,938 INFO L280 TraceCheckUtils]: 10: Hoare triple {84#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {84#false} is VALID [2020-07-29 02:52:44,938 INFO L280 TraceCheckUtils]: 11: Hoare triple {84#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {84#false} is VALID [2020-07-29 02:52:44,938 INFO L280 TraceCheckUtils]: 12: Hoare triple {84#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); {84#false} is VALID [2020-07-29 02:52:44,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:52:44,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951859194] [2020-07-29 02:52:44,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:52:44,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:52:44,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227145348] [2020-07-29 02:52:44,952 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:52:44,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:52:44,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:52:44,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:52:44,972 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 3 states. [2020-07-29 02:52:45,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:52:45,324 INFO L93 Difference]: Finished difference Result 148 states and 210 transitions. [2020-07-29 02:52:45,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:52:45,325 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:52:45,347 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:52:45,350 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 210 transitions. [2020-07-29 02:52:45,363 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2020-07-29 02:52:45,375 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 134 states and 195 transitions. [2020-07-29 02:52:45,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2020-07-29 02:52:45,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2020-07-29 02:52:45,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 195 transitions. [2020-07-29 02:52:45,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:52:45,380 INFO L688 BuchiCegarLoop]: Abstraction has 134 states and 195 transitions. [2020-07-29 02:52:45,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 195 transitions. [2020-07-29 02:52:45,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-07-29 02:52:45,424 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:52:45,424 INFO L82 GeneralOperation]: Start isEquivalent. First operand 134 states and 195 transitions. Second operand 132 states. [2020-07-29 02:52:45,425 INFO L74 IsIncluded]: Start isIncluded. First operand 134 states and 195 transitions. Second operand 132 states. [2020-07-29 02:52:45,427 INFO L87 Difference]: Start difference. First operand 134 states and 195 transitions. Second operand 132 states. [2020-07-29 02:52:45,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:52:45,437 INFO L93 Difference]: Finished difference Result 134 states and 195 transitions. [2020-07-29 02:52:45,438 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 195 transitions. [2020-07-29 02:52:45,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:52:45,441 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:52:45,441 INFO L74 IsIncluded]: Start isIncluded. First operand 132 states. Second operand 134 states and 195 transitions. [2020-07-29 02:52:45,441 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 134 states and 195 transitions. [2020-07-29 02:52:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:52:45,450 INFO L93 Difference]: Finished difference Result 134 states and 195 transitions. [2020-07-29 02:52:45,451 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 195 transitions. [2020-07-29 02:52:45,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:52:45,453 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:52:45,453 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:52:45,453 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:52:45,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-29 02:52:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2020-07-29 02:52:45,464 INFO L711 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2020-07-29 02:52:45,464 INFO L591 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2020-07-29 02:52:45,464 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:52:45,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states and 192 transitions. [2020-07-29 02:52:45,467 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2020-07-29 02:52:45,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:52:45,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:52:45,469 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:52:45,469 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:52:45,469 INFO L794 eck$LassoCheckResult]: Stem: 282#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 243#L-1 havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 234#L420 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 235#L428 main_#t~ret23 := valid_product_#res;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; 275#L384 assume 0 != main_~tmp~3; 256#L358 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 257#L911-1 [2020-07-29 02:52:45,470 INFO L796 eck$LassoCheckResult]: Loop: 257#L911-1 assume !false; 269#L57 assume test_~splverifierCounter~0 < 4; 236#L58 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 237#L66 assume !(0 != test_~tmp~0); 285#L66-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 251#L76 assume !(0 != test_~tmp___0~0); 248#L76-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 249#L86 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 305#L94-1 assume !(0 != ~pumpRunning~0); 260#L131 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 261#L163 assume !(0 == ~pumpRunning~0); 324#L138 havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 311#L884 __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 293#L911 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 257#L911-1 [2020-07-29 02:52:45,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:52:45,471 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2020-07-29 02:52:45,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:52:45,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585690180] [2020-07-29 02:52:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:52:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:45,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:45,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:45,702 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:52:45,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:52:45,704 INFO L82 PathProgramCache]: Analyzing trace with hash -323593893, now seen corresponding path program 1 times [2020-07-29 02:52:45,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:52:45,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585798226] [2020-07-29 02:52:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:52:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:52:45,739 INFO L280 TraceCheckUtils]: 0: Hoare triple {639#true} assume !false; {639#true} is VALID [2020-07-29 02:52:45,739 INFO L280 TraceCheckUtils]: 1: Hoare triple {639#true} assume test_~splverifierCounter~0 < 4; {639#true} is VALID [2020-07-29 02:52:45,740 INFO L280 TraceCheckUtils]: 2: Hoare triple {639#true} test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; {639#true} is VALID [2020-07-29 02:52:45,740 INFO L280 TraceCheckUtils]: 3: Hoare triple {639#true} assume !(0 != test_~tmp~0); {639#true} is VALID [2020-07-29 02:52:45,741 INFO L280 TraceCheckUtils]: 4: Hoare triple {639#true} test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; {639#true} is VALID [2020-07-29 02:52:45,741 INFO L280 TraceCheckUtils]: 5: Hoare triple {639#true} assume !(0 != test_~tmp___0~0); {639#true} is VALID [2020-07-29 02:52:45,741 INFO L280 TraceCheckUtils]: 6: Hoare triple {639#true} test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; {639#true} is VALID [2020-07-29 02:52:45,742 INFO L280 TraceCheckUtils]: 7: Hoare triple {639#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {639#true} is VALID [2020-07-29 02:52:45,743 INFO L280 TraceCheckUtils]: 8: Hoare triple {639#true} assume !(0 != ~pumpRunning~0); {641#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:52:45,744 INFO L280 TraceCheckUtils]: 9: Hoare triple {641#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; {641#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 02:52:45,745 INFO L280 TraceCheckUtils]: 10: Hoare triple {641#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {640#false} is VALID [2020-07-29 02:52:45,745 INFO L280 TraceCheckUtils]: 11: Hoare triple {640#false} havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; {640#false} is VALID [2020-07-29 02:52:45,745 INFO L280 TraceCheckUtils]: 12: Hoare triple {640#false} __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; {640#false} is VALID [2020-07-29 02:52:45,746 INFO L280 TraceCheckUtils]: 13: Hoare triple {640#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); {640#false} is VALID [2020-07-29 02:52:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:52:45,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585798226] [2020-07-29 02:52:45,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:52:45,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 02:52:45,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559107713] [2020-07-29 02:52:45,751 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 02:52:45,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:52:45,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 02:52:45,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 02:52:45,752 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. cyclomatic complexity: 63 Second operand 3 states. [2020-07-29 02:52:46,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:52:46,060 INFO L93 Difference]: Finished difference Result 215 states and 298 transitions. [2020-07-29 02:52:46,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 02:52:46,060 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:52:46,077 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:52:46,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 298 transitions. [2020-07-29 02:52:46,091 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2020-07-29 02:52:46,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 215 states and 298 transitions. [2020-07-29 02:52:46,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2020-07-29 02:52:46,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2020-07-29 02:52:46,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 298 transitions. [2020-07-29 02:52:46,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:52:46,106 INFO L688 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2020-07-29 02:52:46,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 298 transitions. [2020-07-29 02:52:46,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2020-07-29 02:52:46,120 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:52:46,120 INFO L82 GeneralOperation]: Start isEquivalent. First operand 215 states and 298 transitions. Second operand 215 states. [2020-07-29 02:52:46,121 INFO L74 IsIncluded]: Start isIncluded. First operand 215 states and 298 transitions. Second operand 215 states. [2020-07-29 02:52:46,121 INFO L87 Difference]: Start difference. First operand 215 states and 298 transitions. Second operand 215 states. [2020-07-29 02:52:46,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:52:46,131 INFO L93 Difference]: Finished difference Result 215 states and 298 transitions. [2020-07-29 02:52:46,132 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 298 transitions. [2020-07-29 02:52:46,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:52:46,134 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:52:46,134 INFO L74 IsIncluded]: Start isIncluded. First operand 215 states. Second operand 215 states and 298 transitions. [2020-07-29 02:52:46,134 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 215 states and 298 transitions. [2020-07-29 02:52:46,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:52:46,152 INFO L93 Difference]: Finished difference Result 215 states and 298 transitions. [2020-07-29 02:52:46,153 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 298 transitions. [2020-07-29 02:52:46,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:52:46,154 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:52:46,154 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:52:46,155 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:52:46,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-07-29 02:52:46,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 298 transitions. [2020-07-29 02:52:46,172 INFO L711 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2020-07-29 02:52:46,173 INFO L591 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2020-07-29 02:52:46,173 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 02:52:46,173 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 298 transitions. [2020-07-29 02:52:46,175 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2020-07-29 02:52:46,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:52:46,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:52:46,177 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-29 02:52:46,177 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 02:52:46,177 INFO L794 eck$LassoCheckResult]: Stem: 906#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 865#L-1 havoc main_#res;havoc main_#t~ret23, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 857#L420 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 858#L428 main_#t~ret23 := valid_product_#res;main_~tmp~3 := main_#t~ret23;havoc main_#t~ret23; 898#L384 assume 0 != main_~tmp~3; 879#L358 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 880#L911-1 [2020-07-29 02:52:46,178 INFO L796 eck$LassoCheckResult]: Loop: 880#L911-1 assume !false; 985#L57 assume test_~splverifierCounter~0 < 4; 983#L58 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 981#L66 assume !(0 != test_~tmp~0); 977#L66-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 975#L76 assume !(0 != test_~tmp___0~0); 971#L76-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 945#L86 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 933#L94-1 assume !(0 != ~pumpRunning~0); 934#L131 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 999#L163 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 998#L892 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 997#L897 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 996#L265 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~1 := 0; 995#L265-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 994#L271 processEnvironment_#t~ret4 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; 992#L167 assume !(0 != processEnvironment_~tmp~1); 991#L138 havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 990#L884 __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 988#L911 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 880#L911-1 [2020-07-29 02:52:46,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:52:46,178 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2020-07-29 02:52:46,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:52:46,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411483301] [2020-07-29 02:52:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:52:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:46,234 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:46,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:46,313 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:52:46,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:52:46,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1551490649, now seen corresponding path program 1 times [2020-07-29 02:52:46,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:52:46,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943372190] [2020-07-29 02:52:46,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:52:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:46,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:46,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:46,344 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:52:46,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:52:46,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1536778675, now seen corresponding path program 1 times [2020-07-29 02:52:46,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:52:46,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910800904] [2020-07-29 02:52:46,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:52:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:46,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:52:46,472 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:52:46,491 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:52:46,644 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-07-29 02:52:46,772 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-29 02:53:35,225 WARN L193 SmtUtils]: Spent 48.33 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2020-07-29 02:54:15,746 WARN L193 SmtUtils]: Spent 40.21 s on a formula simplification that was a NOOP. DAG size: 400 [2020-07-29 02:54:16,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:54:16 BoogieIcfgContainer [2020-07-29 02:54:16,003 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:54:16,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:54:16,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:54:16,004 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:54:16,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:52:44" (3/4) ... [2020-07-29 02:54:16,008 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 02:54:16,071 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 02:54:16,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:54:16,074 INFO L168 Benchmark]: Toolchain (without parser) took 93997.63 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 230.2 MB). Free memory was 960.2 MB in the beginning and 960.0 MB in the end (delta: 230.5 kB). Peak memory consumption was 230.4 MB. Max. memory is 11.5 GB. [2020-07-29 02:54:16,074 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:54:16,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 62.9 MB). Free memory was 954.9 MB in the beginning and 1.0 GB in the end (delta: -88.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:54:16,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:54:16,076 INFO L168 Benchmark]: Boogie Preprocessor took 42.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2020-07-29 02:54:16,077 INFO L168 Benchmark]: RCFGBuilder took 1285.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 907.8 MB in the end (delta: 128.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. [2020-07-29 02:54:16,078 INFO L168 Benchmark]: BuchiAutomizer took 91761.59 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 167.2 MB). Free memory was 907.8 MB in the beginning and 969.5 MB in the end (delta: -61.7 MB). Peak memory consumption was 345.1 MB. Max. memory is 11.5 GB. [2020-07-29 02:54:16,078 INFO L168 Benchmark]: Witness Printer took 68.12 ms. Allocated memory is still 1.3 GB. Free memory was 969.5 MB in the beginning and 960.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:54:16,082 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 749.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 62.9 MB). Free memory was 954.9 MB in the beginning and 1.0 GB in the end (delta: -88.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1285.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 907.8 MB in the end (delta: 128.1 MB). Peak memory consumption was 128.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 91761.59 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 167.2 MB). Free memory was 907.8 MB in the beginning and 969.5 MB in the end (delta: -61.7 MB). Peak memory consumption was 345.1 MB. Max. memory is 11.5 GB. * Witness Printer took 68.12 ms. Allocated memory is still 1.3 GB. Free memory was 969.5 MB in the beginning and 960.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 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 3 locations. The remainder module has 215 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 91.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 90.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 217 SDtfs, 185 SDslu, 146 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 56]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=17997} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5faba34e=0, NULL=18022, NULL=0, NULL=0, NULL=17999, NULL=0, NULL=0, retValue_acc=1, NULL=17997, NULL=18006, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e6ad00=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f694923=0, NULL=18021, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27e5ee98=52, NULL=18009, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1476751f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61ae03f1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e263dbe=0, NULL=18014, NULL=18012, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, tmp___1=0, cleanupTimeShifts=4, tmp=0, NULL=18019, tmp___0=0, NULL=18000, NULL=18020, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=18007, \result=1, \result=0, NULL=18008, NULL=18015, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69d08745=0, \result=1, head=0, pumpRunning=0, NULL=18011, \result=0, NULL=18017, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f697140=0, NULL=18018, tmp=1, NULL=0, NULL=0, NULL=0, retValue_acc=1, \result=1, NULL=18013, NULL=18005, NULL=17998, tmp=1, tmp=1, tmp___2=52, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=18003, tmp=0, head=0, NULL=18004, NULL=18002, NULL=0, NULL=0, NULL=18016, NULL=18001, NULL=0, NULL=18010} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; [L375] int retValue_acc ; [L376] int tmp ; [L424] int retValue_acc ; [L427] retValue_acc = 1 [L428] return (retValue_acc); [L382] tmp = valid_product() [L384] COND TRUE \read(tmp) [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 Loop: [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 [L131] COND FALSE !(\read(pumpRunning)) [L138] COND TRUE \read(systemActive) [L160] int tmp ; [L163] COND TRUE ! pumpRunning [L257] int retValue_acc ; [L258] int tmp ; [L259] int tmp___0 ; [L889] int retValue_acc ; [L892] COND TRUE waterLevel < 2 [L893] retValue_acc = 1 [L894] return (retValue_acc); [L263] tmp = isHighWaterSensorDry() [L265] COND TRUE \read(tmp) [L266] tmp___0 = 0 [L270] retValue_acc = tmp___0 [L271] return (retValue_acc); [L165] tmp = isHighWaterLevel() [L167] COND FALSE !(\read(tmp)) [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...