./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product52.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_spec5_product52.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 9fc6dbbcfa33ba532c22e3e2a2682304ea7cf29d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:02:39,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 03:02:39,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 03:02:39,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 03:02:39,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 03:02:39,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 03:02:39,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 03:02:39,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 03:02:39,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 03:02:39,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 03:02:39,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 03:02:39,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 03:02:39,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 03:02:39,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 03:02:39,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 03:02:39,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 03:02:39,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 03:02:39,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 03:02:39,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 03:02:39,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 03:02:39,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 03:02:39,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 03:02:39,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 03:02:39,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 03:02:39,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 03:02:39,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 03:02:39,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 03:02:39,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 03:02:39,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 03:02:39,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 03:02:39,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 03:02:39,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 03:02:39,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 03:02:39,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 03:02:39,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 03:02:39,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 03:02:39,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 03:02:39,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 03:02:39,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 03:02:39,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 03:02:39,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 03:02:39,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 03:02:39,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 03:02:39,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 03:02:39,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 03:02:39,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 03:02:39,123 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 03:02:39,124 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 03:02:39,124 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 03:02:39,124 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 03:02:39,124 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 03:02:39,125 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 03:02:39,126 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 03:02:39,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 03:02:39,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 03:02:39,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 03:02:39,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 03:02:39,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 03:02:39,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 03:02:39,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 03:02:39,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 03:02:39,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 03:02:39,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 03:02:39,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 03:02:39,130 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 03:02:39,130 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 03:02:39,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 03:02:39,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 03:02:39,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 03:02:39,131 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 03:02:39,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 03:02:39,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 03:02:39,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 03:02:39,134 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 03:02:39,135 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 03:02:39,136 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 -> 9fc6dbbcfa33ba532c22e3e2a2682304ea7cf29d [2020-07-29 03:02:39,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 03:02:39,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 03:02:39,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 03:02:39,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 03:02:39,499 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 03:02:39,500 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2020-07-29 03:02:39,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14823e85/4e03d2bd380545688cac1f07b52ca050/FLAG71da9c5ba [2020-07-29 03:02:40,031 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 03:02:40,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2020-07-29 03:02:40,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14823e85/4e03d2bd380545688cac1f07b52ca050/FLAG71da9c5ba [2020-07-29 03:02:40,334 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14823e85/4e03d2bd380545688cac1f07b52ca050 [2020-07-29 03:02:40,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 03:02:40,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 03:02:40,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 03:02:40,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 03:02:40,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 03:02:40,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:02:40" (1/1) ... [2020-07-29 03:02:40,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9580f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:40, skipping insertion in model container [2020-07-29 03:02:40,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:02:40" (1/1) ... [2020-07-29 03:02:40,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 03:02:40,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 03:02:40,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:02:40,946 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 03:02:41,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:02:41,167 INFO L208 MainTranslator]: Completed translation [2020-07-29 03:02:41,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41 WrapperNode [2020-07-29 03:02:41,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 03:02:41,168 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 03:02:41,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 03:02:41,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 03:02:41,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (1/1) ... [2020-07-29 03:02:41,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (1/1) ... [2020-07-29 03:02:41,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 03:02:41,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 03:02:41,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 03:02:41,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 03:02:41,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (1/1) ... [2020-07-29 03:02:41,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (1/1) ... [2020-07-29 03:02:41,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (1/1) ... [2020-07-29 03:02:41,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (1/1) ... [2020-07-29 03:02:41,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (1/1) ... [2020-07-29 03:02:41,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (1/1) ... [2020-07-29 03:02:41,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (1/1) ... [2020-07-29 03:02:41,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 03:02:41,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 03:02:41,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 03:02:41,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 03:02:41,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (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 03:02:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 03:02:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-29 03:02:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 03:02:41,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 03:02:42,852 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 03:02:42,852 INFO L295 CfgBuilder]: Removed 176 assume(true) statements. [2020-07-29 03:02:42,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:02:42 BoogieIcfgContainer [2020-07-29 03:02:42,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 03:02:42,859 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 03:02:42,859 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 03:02:42,863 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 03:02:42,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:02:42,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 03:02:40" (1/3) ... [2020-07-29 03:02:42,866 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4295b20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:02:42, skipping insertion in model container [2020-07-29 03:02:42,866 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:02:42,867 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:02:41" (2/3) ... [2020-07-29 03:02:42,867 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4295b20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:02:42, skipping insertion in model container [2020-07-29 03:02:42,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:02:42,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:02:42" (3/3) ... [2020-07-29 03:02:42,870 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2020-07-29 03:02:42,926 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 03:02:42,927 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 03:02:42,927 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 03:02:42,928 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 03:02:42,928 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 03:02:42,929 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 03:02:42,929 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 03:02:42,929 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 03:02:42,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2020-07-29 03:02:43,006 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2020-07-29 03:02:43,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:02:43,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:02:43,015 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:02:43,016 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:02:43,016 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 03:02:43,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2020-07-29 03:02:43,029 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2020-07-29 03:02:43,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:02:43,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:02:43,031 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:02:43,031 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:02:43,039 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 9#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 16#L998true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 21#L1006true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 86#L498true assume 0 != main_~tmp~3; 42#L469true ~switchedOnBeforeTS~0 := 0; 75#L529true havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 112#L550-1true [2020-07-29 03:02:43,040 INFO L796 eck$LassoCheckResult]: Loop: 112#L550-1true assume !false; 122#L693true assume test_~splverifierCounter~0 < 4; 80#L694true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 81#L702true assume !(0 != test_~tmp~5); 82#L702-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 125#L712true assume !(0 != test_~tmp___0~1); 126#L712-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 51#L722true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 62#L730-1true havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 28#L874true __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 109#L539true assume !(0 != ~pumpRunning~0); 77#L763true assume !(0 != ~systemActive~0); 118#L770true havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 96#L652true __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 108#L550true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 112#L550-1true [2020-07-29 03:02:43,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:02:43,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2020-07-29 03:02:43,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:02:43,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536166833] [2020-07-29 03:02:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:02:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:43,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:43,440 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:43,485 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:02:43,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:02:43,487 INFO L82 PathProgramCache]: Analyzing trace with hash 677042294, now seen corresponding path program 1 times [2020-07-29 03:02:43,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:02:43,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305307808] [2020-07-29 03:02:43,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:02:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:02:43,565 INFO L280 TraceCheckUtils]: 0: Hoare triple {131#true} assume !false; {131#true} is VALID [2020-07-29 03:02:43,566 INFO L280 TraceCheckUtils]: 1: Hoare triple {131#true} assume test_~splverifierCounter~0 < 4; {131#true} is VALID [2020-07-29 03:02:43,566 INFO L280 TraceCheckUtils]: 2: Hoare triple {131#true} test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; {131#true} is VALID [2020-07-29 03:02:43,566 INFO L280 TraceCheckUtils]: 3: Hoare triple {131#true} assume !(0 != test_~tmp~5); {131#true} is VALID [2020-07-29 03:02:43,567 INFO L280 TraceCheckUtils]: 4: Hoare triple {131#true} test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; {131#true} is VALID [2020-07-29 03:02:43,567 INFO L280 TraceCheckUtils]: 5: Hoare triple {131#true} assume !(0 != test_~tmp___0~1); {131#true} is VALID [2020-07-29 03:02:43,568 INFO L280 TraceCheckUtils]: 6: Hoare triple {131#true} test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; {131#true} is VALID [2020-07-29 03:02:43,569 INFO L280 TraceCheckUtils]: 7: Hoare triple {131#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {133#(<= 1 ~systemActive~0)} is VALID [2020-07-29 03:02:43,570 INFO L280 TraceCheckUtils]: 8: Hoare triple {133#(<= 1 ~systemActive~0)} havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; {133#(<= 1 ~systemActive~0)} is VALID [2020-07-29 03:02:43,571 INFO L280 TraceCheckUtils]: 9: Hoare triple {133#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; {133#(<= 1 ~systemActive~0)} is VALID [2020-07-29 03:02:43,572 INFO L280 TraceCheckUtils]: 10: Hoare triple {133#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {133#(<= 1 ~systemActive~0)} is VALID [2020-07-29 03:02:43,573 INFO L280 TraceCheckUtils]: 11: Hoare triple {133#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {132#false} is VALID [2020-07-29 03:02:43,574 INFO L280 TraceCheckUtils]: 12: Hoare triple {132#false} havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; {132#false} is VALID [2020-07-29 03:02:43,574 INFO L280 TraceCheckUtils]: 13: Hoare triple {132#false} __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; {132#false} is VALID [2020-07-29 03:02:43,574 INFO L280 TraceCheckUtils]: 14: Hoare triple {132#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); {132#false} is VALID [2020-07-29 03:02:43,578 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 03:02:43,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305307808] [2020-07-29 03:02:43,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 03:02:43,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 03:02:43,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172604774] [2020-07-29 03:02:43,588 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 03:02:43,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 03:02:43,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 03:02:43,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 03:02:43,607 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2020-07-29 03:02:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:02:44,117 INFO L93 Difference]: Finished difference Result 243 states and 353 transitions. [2020-07-29 03:02:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 03:02:44,118 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 03:02:44,153 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:02:44,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 353 transitions. [2020-07-29 03:02:44,175 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2020-07-29 03:02:44,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 229 states and 338 transitions. [2020-07-29 03:02:44,195 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 229 [2020-07-29 03:02:44,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 229 [2020-07-29 03:02:44,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 229 states and 338 transitions. [2020-07-29 03:02:44,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:02:44,199 INFO L688 BuchiCegarLoop]: Abstraction has 229 states and 338 transitions. [2020-07-29 03:02:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states and 338 transitions. [2020-07-29 03:02:44,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2020-07-29 03:02:44,251 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:02:44,252 INFO L82 GeneralOperation]: Start isEquivalent. First operand 229 states and 338 transitions. Second operand 227 states. [2020-07-29 03:02:44,253 INFO L74 IsIncluded]: Start isIncluded. First operand 229 states and 338 transitions. Second operand 227 states. [2020-07-29 03:02:44,255 INFO L87 Difference]: Start difference. First operand 229 states and 338 transitions. Second operand 227 states. [2020-07-29 03:02:44,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:02:44,270 INFO L93 Difference]: Finished difference Result 229 states and 338 transitions. [2020-07-29 03:02:44,271 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 338 transitions. [2020-07-29 03:02:44,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:02:44,274 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:02:44,274 INFO L74 IsIncluded]: Start isIncluded. First operand 227 states. Second operand 229 states and 338 transitions. [2020-07-29 03:02:44,274 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 229 states and 338 transitions. [2020-07-29 03:02:44,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:02:44,291 INFO L93 Difference]: Finished difference Result 229 states and 338 transitions. [2020-07-29 03:02:44,292 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 338 transitions. [2020-07-29 03:02:44,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:02:44,299 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:02:44,299 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:02:44,300 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:02:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-07-29 03:02:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 335 transitions. [2020-07-29 03:02:44,316 INFO L711 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2020-07-29 03:02:44,317 INFO L591 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2020-07-29 03:02:44,320 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 03:02:44,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states and 335 transitions. [2020-07-29 03:02:44,324 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 156 [2020-07-29 03:02:44,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:02:44,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:02:44,328 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:02:44,328 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:02:44,328 INFO L794 eck$LassoCheckResult]: Stem: 479#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 389#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 390#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 403#L1006 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 409#L498 assume 0 != main_~tmp~3; 433#L469 ~switchedOnBeforeTS~0 := 0; 434#L529 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 472#L550-1 [2020-07-29 03:02:44,330 INFO L796 eck$LassoCheckResult]: Loop: 472#L550-1 assume !false; 548#L693 assume test_~splverifierCounter~0 < 4; 546#L694 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 544#L702 assume !(0 != test_~tmp~5); 541#L702-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 540#L712 assume !(0 != test_~tmp___0~1); 530#L712-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 528#L722 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 450#L730-1 havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 417#L874 __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 418#L539 assume !(0 != ~pumpRunning~0); 473#L763 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 474#L821 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 560#L795-1 assume !(0 == ~pumpRunning~0); 555#L770 havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 554#L652 __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 552#L550 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 472#L550-1 [2020-07-29 03:02:44,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:02:44,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2020-07-29 03:02:44,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:02:44,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146894761] [2020-07-29 03:02:44,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:02:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:44,430 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:44,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:44,497 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:02:44,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:02:44,498 INFO L82 PathProgramCache]: Analyzing trace with hash -543108204, now seen corresponding path program 1 times [2020-07-29 03:02:44,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:02:44,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064977253] [2020-07-29 03:02:44,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:02:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:02:44,522 INFO L280 TraceCheckUtils]: 0: Hoare triple {1067#true} assume !false; {1067#true} is VALID [2020-07-29 03:02:44,523 INFO L280 TraceCheckUtils]: 1: Hoare triple {1067#true} assume test_~splverifierCounter~0 < 4; {1067#true} is VALID [2020-07-29 03:02:44,523 INFO L280 TraceCheckUtils]: 2: Hoare triple {1067#true} test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; {1067#true} is VALID [2020-07-29 03:02:44,524 INFO L280 TraceCheckUtils]: 3: Hoare triple {1067#true} assume !(0 != test_~tmp~5); {1067#true} is VALID [2020-07-29 03:02:44,524 INFO L280 TraceCheckUtils]: 4: Hoare triple {1067#true} test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; {1067#true} is VALID [2020-07-29 03:02:44,524 INFO L280 TraceCheckUtils]: 5: Hoare triple {1067#true} assume !(0 != test_~tmp___0~1); {1067#true} is VALID [2020-07-29 03:02:44,525 INFO L280 TraceCheckUtils]: 6: Hoare triple {1067#true} test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; {1067#true} is VALID [2020-07-29 03:02:44,525 INFO L280 TraceCheckUtils]: 7: Hoare triple {1067#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {1067#true} is VALID [2020-07-29 03:02:44,525 INFO L280 TraceCheckUtils]: 8: Hoare triple {1067#true} havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; {1067#true} is VALID [2020-07-29 03:02:44,526 INFO L280 TraceCheckUtils]: 9: Hoare triple {1067#true} __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; {1067#true} is VALID [2020-07-29 03:02:44,530 INFO L280 TraceCheckUtils]: 10: Hoare triple {1067#true} assume !(0 != ~pumpRunning~0); {1069#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 03:02:44,533 INFO L280 TraceCheckUtils]: 11: Hoare triple {1069#(= 0 ~pumpRunning~0)} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; {1069#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 03:02:44,534 INFO L280 TraceCheckUtils]: 12: Hoare triple {1069#(= 0 ~pumpRunning~0)} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; {1069#(= 0 ~pumpRunning~0)} is VALID [2020-07-29 03:02:44,535 INFO L280 TraceCheckUtils]: 13: Hoare triple {1069#(= 0 ~pumpRunning~0)} assume !(0 == ~pumpRunning~0); {1068#false} is VALID [2020-07-29 03:02:44,535 INFO L280 TraceCheckUtils]: 14: Hoare triple {1068#false} havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; {1068#false} is VALID [2020-07-29 03:02:44,536 INFO L280 TraceCheckUtils]: 15: Hoare triple {1068#false} __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; {1068#false} is VALID [2020-07-29 03:02:44,536 INFO L280 TraceCheckUtils]: 16: Hoare triple {1068#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); {1068#false} is VALID [2020-07-29 03:02:44,538 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 03:02:44,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064977253] [2020-07-29 03:02:44,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 03:02:44,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-29 03:02:44,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240923869] [2020-07-29 03:02:44,540 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 03:02:44,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 03:02:44,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 03:02:44,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 03:02:44,541 INFO L87 Difference]: Start difference. First operand 227 states and 335 transitions. cyclomatic complexity: 111 Second operand 3 states. [2020-07-29 03:02:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:02:45,006 INFO L93 Difference]: Finished difference Result 326 states and 457 transitions. [2020-07-29 03:02:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 03:02:45,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 03:02:45,030 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:02:45,032 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 457 transitions. [2020-07-29 03:02:45,051 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2020-07-29 03:02:45,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 326 states and 457 transitions. [2020-07-29 03:02:45,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2020-07-29 03:02:45,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2020-07-29 03:02:45,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 457 transitions. [2020-07-29 03:02:45,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:02:45,074 INFO L688 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2020-07-29 03:02:45,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 457 transitions. [2020-07-29 03:02:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2020-07-29 03:02:45,092 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:02:45,093 INFO L82 GeneralOperation]: Start isEquivalent. First operand 326 states and 457 transitions. Second operand 326 states. [2020-07-29 03:02:45,093 INFO L74 IsIncluded]: Start isIncluded. First operand 326 states and 457 transitions. Second operand 326 states. [2020-07-29 03:02:45,093 INFO L87 Difference]: Start difference. First operand 326 states and 457 transitions. Second operand 326 states. [2020-07-29 03:02:45,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:02:45,112 INFO L93 Difference]: Finished difference Result 326 states and 457 transitions. [2020-07-29 03:02:45,113 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 457 transitions. [2020-07-29 03:02:45,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:02:45,114 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:02:45,114 INFO L74 IsIncluded]: Start isIncluded. First operand 326 states. Second operand 326 states and 457 transitions. [2020-07-29 03:02:45,114 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 326 states and 457 transitions. [2020-07-29 03:02:45,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:02:45,131 INFO L93 Difference]: Finished difference Result 326 states and 457 transitions. [2020-07-29 03:02:45,131 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 457 transitions. [2020-07-29 03:02:45,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:02:45,132 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:02:45,132 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:02:45,132 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:02:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2020-07-29 03:02:45,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 457 transitions. [2020-07-29 03:02:45,149 INFO L711 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2020-07-29 03:02:45,149 INFO L591 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2020-07-29 03:02:45,149 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 03:02:45,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 457 transitions. [2020-07-29 03:02:45,152 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2020-07-29 03:02:45,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:02:45,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:02:45,154 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:02:45,154 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, 1, 1, 1] [2020-07-29 03:02:45,154 INFO L794 eck$LassoCheckResult]: Stem: 1503#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1408#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1409#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1422#L1006 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 1428#L498 assume 0 != main_~tmp~3; 1453#L469 ~switchedOnBeforeTS~0 := 0; 1454#L529 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1405#L550-1 [2020-07-29 03:02:45,155 INFO L796 eck$LassoCheckResult]: Loop: 1405#L550-1 assume !false; 1533#L693 assume test_~splverifierCounter~0 < 4; 1500#L694 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 1501#L702 assume !(0 != test_~tmp~5); 1496#L702-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 1502#L712 assume !(0 != test_~tmp___0~1); 1439#L712-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 1468#L722 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1470#L730-1 havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1610#L874 __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 1530#L539 assume !(0 != ~pumpRunning~0); 1497#L763 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1493#L821 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1494#L795-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1526#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1398#L665-1 isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; 1399#L923-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 1452#L923-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 1434#L929-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 1435#L799-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1459#L770 havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1518#L652 __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 1519#L550 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 1405#L550-1 [2020-07-29 03:02:45,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:02:45,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2020-07-29 03:02:45,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:02:45,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345504748] [2020-07-29 03:02:45,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:02:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:45,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:45,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:45,254 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:02:45,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:02:45,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1971117568, now seen corresponding path program 1 times [2020-07-29 03:02:45,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:02:45,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239339416] [2020-07-29 03:02:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:02:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:02:45,325 INFO L280 TraceCheckUtils]: 0: Hoare triple {2379#true} assume !false; {2379#true} is VALID [2020-07-29 03:02:45,326 INFO L280 TraceCheckUtils]: 1: Hoare triple {2379#true} assume test_~splverifierCounter~0 < 4; {2379#true} is VALID [2020-07-29 03:02:45,326 INFO L280 TraceCheckUtils]: 2: Hoare triple {2379#true} test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; {2379#true} is VALID [2020-07-29 03:02:45,327 INFO L280 TraceCheckUtils]: 3: Hoare triple {2379#true} assume !(0 != test_~tmp~5); {2379#true} is VALID [2020-07-29 03:02:45,327 INFO L280 TraceCheckUtils]: 4: Hoare triple {2379#true} test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; {2379#true} is VALID [2020-07-29 03:02:45,327 INFO L280 TraceCheckUtils]: 5: Hoare triple {2379#true} assume !(0 != test_~tmp___0~1); {2379#true} is VALID [2020-07-29 03:02:45,328 INFO L280 TraceCheckUtils]: 6: Hoare triple {2379#true} test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; {2379#true} is VALID [2020-07-29 03:02:45,328 INFO L280 TraceCheckUtils]: 7: Hoare triple {2379#true} assume 0 != test_~tmp___2~0;~systemActive~0 := 1; {2379#true} is VALID [2020-07-29 03:02:45,328 INFO L280 TraceCheckUtils]: 8: Hoare triple {2379#true} havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; {2379#true} is VALID [2020-07-29 03:02:45,329 INFO L280 TraceCheckUtils]: 9: Hoare triple {2379#true} __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; {2379#true} is VALID [2020-07-29 03:02:45,329 INFO L280 TraceCheckUtils]: 10: Hoare triple {2379#true} assume !(0 != ~pumpRunning~0); {2379#true} is VALID [2020-07-29 03:02:45,330 INFO L280 TraceCheckUtils]: 11: Hoare triple {2379#true} assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; {2379#true} is VALID [2020-07-29 03:02:45,330 INFO L280 TraceCheckUtils]: 12: Hoare triple {2379#true} assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; {2379#true} is VALID [2020-07-29 03:02:45,331 INFO L280 TraceCheckUtils]: 13: Hoare triple {2379#true} assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; {2379#true} is VALID [2020-07-29 03:02:45,338 INFO L280 TraceCheckUtils]: 14: Hoare triple {2379#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; {2381#(<= ~waterLevel~0 1)} is VALID [2020-07-29 03:02:45,339 INFO L280 TraceCheckUtils]: 15: Hoare triple {2381#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; {2381#(<= ~waterLevel~0 1)} is VALID [2020-07-29 03:02:45,339 INFO L280 TraceCheckUtils]: 16: Hoare triple {2381#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; {2381#(<= ~waterLevel~0 1)} is VALID [2020-07-29 03:02:45,340 INFO L280 TraceCheckUtils]: 17: Hoare triple {2381#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; {2381#(<= ~waterLevel~0 1)} is VALID [2020-07-29 03:02:45,341 INFO L280 TraceCheckUtils]: 18: Hoare triple {2381#(<= ~waterLevel~0 1)} processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; {2381#(<= ~waterLevel~0 1)} is VALID [2020-07-29 03:02:45,341 INFO L280 TraceCheckUtils]: 19: Hoare triple {2381#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); {2381#(<= ~waterLevel~0 1)} is VALID [2020-07-29 03:02:45,346 INFO L280 TraceCheckUtils]: 20: Hoare triple {2381#(<= ~waterLevel~0 1)} havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; {2382#(<= |ULTIMATE.start_getWaterLevel_#res| 1)} is VALID [2020-07-29 03:02:45,349 INFO L280 TraceCheckUtils]: 21: Hoare triple {2382#(<= |ULTIMATE.start_getWaterLevel_#res| 1)} __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; {2383#(<= ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4 1)} is VALID [2020-07-29 03:02:45,349 INFO L280 TraceCheckUtils]: 22: Hoare triple {2383#(<= ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~4 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); {2380#false} is VALID [2020-07-29 03:02:45,350 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 03:02:45,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239339416] [2020-07-29 03:02:45,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 03:02:45,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-29 03:02:45,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443827230] [2020-07-29 03:02:45,353 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-07-29 03:02:45,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 03:02:45,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-29 03:02:45,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-29 03:02:45,356 INFO L87 Difference]: Start difference. First operand 326 states and 457 transitions. cyclomatic complexity: 134 Second operand 5 states. [2020-07-29 03:02:46,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:02:46,859 INFO L93 Difference]: Finished difference Result 902 states and 1237 transitions. [2020-07-29 03:02:46,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-29 03:02:46,859 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-29 03:02:46,893 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:02:46,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 902 states and 1237 transitions. [2020-07-29 03:02:46,963 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 599 [2020-07-29 03:02:47,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 902 states to 902 states and 1237 transitions. [2020-07-29 03:02:47,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 902 [2020-07-29 03:02:47,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 902 [2020-07-29 03:02:47,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 902 states and 1237 transitions. [2020-07-29 03:02:47,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:02:47,029 INFO L688 BuchiCegarLoop]: Abstraction has 902 states and 1237 transitions. [2020-07-29 03:02:47,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states and 1237 transitions. [2020-07-29 03:02:47,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 645. [2020-07-29 03:02:47,049 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:02:47,049 INFO L82 GeneralOperation]: Start isEquivalent. First operand 902 states and 1237 transitions. Second operand 645 states. [2020-07-29 03:02:47,049 INFO L74 IsIncluded]: Start isIncluded. First operand 902 states and 1237 transitions. Second operand 645 states. [2020-07-29 03:02:47,049 INFO L87 Difference]: Start difference. First operand 902 states and 1237 transitions. Second operand 645 states. [2020-07-29 03:02:47,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:02:47,100 INFO L93 Difference]: Finished difference Result 902 states and 1237 transitions. [2020-07-29 03:02:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1237 transitions. [2020-07-29 03:02:47,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:02:47,102 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:02:47,102 INFO L74 IsIncluded]: Start isIncluded. First operand 645 states. Second operand 902 states and 1237 transitions. [2020-07-29 03:02:47,103 INFO L87 Difference]: Start difference. First operand 645 states. Second operand 902 states and 1237 transitions. [2020-07-29 03:02:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:02:47,166 INFO L93 Difference]: Finished difference Result 902 states and 1237 transitions. [2020-07-29 03:02:47,167 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1237 transitions. [2020-07-29 03:02:47,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:02:47,169 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:02:47,170 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:02:47,170 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:02:47,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-07-29 03:02:47,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 879 transitions. [2020-07-29 03:02:47,207 INFO L711 BuchiCegarLoop]: Abstraction has 645 states and 879 transitions. [2020-07-29 03:02:47,207 INFO L591 BuchiCegarLoop]: Abstraction has 645 states and 879 transitions. [2020-07-29 03:02:47,207 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-29 03:02:47,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 645 states and 879 transitions. [2020-07-29 03:02:47,213 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 462 [2020-07-29 03:02:47,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:02:47,213 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:02:47,214 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:02:47,214 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, 1, 1, 1, 1, 1] [2020-07-29 03:02:47,214 INFO L794 eck$LassoCheckResult]: Stem: 3405#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(13);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);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(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #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(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3306#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 3307#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 3320#L1006 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 3326#L498 assume 0 != main_~tmp~3; 3351#L469 ~switchedOnBeforeTS~0 := 0; 3352#L529 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3303#L550-1 [2020-07-29 03:02:47,215 INFO L796 eck$LassoCheckResult]: Loop: 3303#L550-1 assume !false; 3431#L693 assume test_~splverifierCounter~0 < 4; 3401#L694 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 3402#L702 assume !(0 != test_~tmp~5); 3403#L702-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 3404#L712 assume !(0 != test_~tmp___0~1); 3337#L712-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 3367#L722 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3369#L730-1 havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 3334#L874 __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 3335#L539 assume !(0 != ~pumpRunning~0); 3397#L763 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 3393#L821 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 3394#L795-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 3426#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 3296#L665-1 isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; 3297#L923-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 3350#L923-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 3332#L929-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 3333#L799-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 3358#L770 havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 3416#L652 __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 3417#L550 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 3308#L874-1 __utac_acc__Specification5_spec__3_#t~ret38 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 3309#L554 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 3303#L550-1 [2020-07-29 03:02:47,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:02:47,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2020-07-29 03:02:47,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:02:47,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936930770] [2020-07-29 03:02:47,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:02:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:47,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:47,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:47,291 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:02:47,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:02:47,291 INFO L82 PathProgramCache]: Analyzing trace with hash -163417157, now seen corresponding path program 1 times [2020-07-29 03:02:47,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:02:47,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650689754] [2020-07-29 03:02:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:02:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:47,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:47,304 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:47,309 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:02:47,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:02:47,309 INFO L82 PathProgramCache]: Analyzing trace with hash -226843339, now seen corresponding path program 1 times [2020-07-29 03:02:47,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:02:47,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368047271] [2020-07-29 03:02:47,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:02:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:47,347 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:02:47,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:02:47,401 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:02:47,544 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-07-29 03:03:37,959 WARN L193 SmtUtils]: Spent 50.15 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2020-07-29 03:04:17,975 WARN L193 SmtUtils]: Spent 39.72 s on a formula simplification that was a NOOP. DAG size: 402 [2020-07-29 03:04:18,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 03:04:18 BoogieIcfgContainer [2020-07-29 03:04:18,158 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 03:04:18,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 03:04:18,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 03:04:18,159 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 03:04:18,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:02:42" (3/4) ... [2020-07-29 03:04:18,164 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 03:04:18,237 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 03:04:18,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 03:04:18,241 INFO L168 Benchmark]: Toolchain (without parser) took 97900.93 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 329.3 MB). Free memory was 957.5 MB in the beginning and 1.2 GB in the end (delta: -238.9 MB). Peak memory consumption was 90.3 MB. Max. memory is 11.5 GB. [2020-07-29 03:04:18,244 INFO L168 Benchmark]: CDTParser took 0.26 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 03:04:18,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2020-07-29 03:04:18,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2020-07-29 03:04:18,249 INFO L168 Benchmark]: Boogie Preprocessor took 73.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:04:18,249 INFO L168 Benchmark]: RCFGBuilder took 1515.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.2 MB in the end (delta: 153.2 MB). Peak memory consumption was 153.2 MB. Max. memory is 11.5 GB. [2020-07-29 03:04:18,250 INFO L168 Benchmark]: BuchiAutomizer took 95299.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 197.7 MB). Free memory was 945.2 MB in the beginning and 1.2 GB in the end (delta: -261.9 MB). Peak memory consumption was 312.8 MB. Max. memory is 11.5 GB. [2020-07-29 03:04:18,251 INFO L168 Benchmark]: Witness Printer took 78.87 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 03:04:18,256 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 0.26 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 825.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 99.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1515.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.2 MB in the end (delta: 153.2 MB). Peak memory consumption was 153.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 95299.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 197.7 MB). Free memory was 945.2 MB in the beginning and 1.2 GB in the end (delta: -261.9 MB). Peak memory consumption was 312.8 MB. Max. memory is 11.5 GB. * Witness Printer took 78.87 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 645 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 95.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 91.8s. Construction of modules took 0.3s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 259 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 645 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 613 SDtfs, 861 SDslu, 835 SDs, 0 SdLazy, 145 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI3 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: 692]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=1, NULL=28845, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59dc84ca=0, NULL=53659, NULL=0, NULL=0, NULL=37255, NULL=0, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@585a030f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ef77cc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b46ce33=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fa1abd0=47, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d528841=0, tmp___0=0, NULL=0, NULL=0, tmp=0, tmp=1, NULL=0, tmp___1=0, NULL=53665, NULL=53667, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@886ff5b=0, NULL=53666, NULL=53670, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cd747d5=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=53671, NULL=53662, tmp=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=53658, \result=1, NULL=0, NULL=0, \result=0, NULL=53660, NULL=0, tmp___0=0, \result=1, NULL=2, head=0, pumpRunning=0, NULL=53655, \result=0, retValue_acc=1, NULL=4348, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cfa2b7d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1371889=0, \result=1, NULL=53656, NULL=53657, NULL=37254, NULL=53661, NULL=0, retValue_acc=0, tmp=1, tmp___2=47, NULL=53672, tmp___0=0, retValue_acc=1, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2672a01f=0, NULL=28844, head=0, NULL=0, NULL=53668, NULL=53669, NULL=0, NULL=53664, tmp=0, NULL=0, NULL=0, NULL=53663, retValue_acc=0, NULL=0, NULL=37256} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L523] int switchedOnBeforeTS ; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L753] int pumpRunning = 0; [L754] int systemActive = 1; [L489] int retValue_acc ; [L490] int tmp ; [L1002] int retValue_acc ; [L1005] retValue_acc = 1 [L1006] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L528] switchedOnBeforeTS = 0 [L683] int splverifierCounter ; [L684] int tmp ; [L685] int tmp___0 ; [L686] int tmp___1 ; [L687] int tmp___2 ; [L690] splverifierCounter = 0 Loop: [L692] COND TRUE 1 [L694] COND TRUE splverifierCounter < 4 [L700] tmp = __VERIFIER_nondet_int() [L702] COND FALSE !(\read(tmp)) [L710] tmp___0 = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp___0)) [L720] tmp___2 = __VERIFIER_nondet_int() [L722] COND TRUE \read(tmp___2) [L971] systemActive = 1 [L870] int retValue_acc ; [L873] retValue_acc = pumpRunning [L874] return (retValue_acc); [L537] switchedOnBeforeTS = isPumpRunning() [L763] COND FALSE !(\read(pumpRunning)) [L770] COND TRUE \read(systemActive) [L818] int tmp ; [L821] COND FALSE !(\read(pumpRunning)) [L792] int tmp ; [L795] COND TRUE ! pumpRunning [L915] int retValue_acc ; [L916] int tmp ; [L917] int tmp___0 ; [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L921] tmp = isHighWaterSensorDry() [L923] COND TRUE \read(tmp) [L924] tmp___0 = 0 [L928] retValue_acc = tmp___0 [L929] return (retValue_acc); [L797] tmp = isHighWaterLevel() [L799] COND FALSE !(\read(tmp)) [L543] int tmp ; [L544] int tmp___0 ; [L648] int retValue_acc ; [L651] retValue_acc = waterLevel [L652] return (retValue_acc); [L548] tmp = getWaterLevel() [L550] COND TRUE tmp != 2 [L870] int retValue_acc ; [L873] retValue_acc = pumpRunning [L874] return (retValue_acc); [L552] tmp___0 = isPumpRunning() [L554] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...