./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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_spec1_product37.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 a4cdc62a5b5efdfba89a3280823bf73bd08d347a .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-f470102 [2019-11-28 20:59:01,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:59:01,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:59:01,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:59:01,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:59:01,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:59:01,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:59:01,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:59:01,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:59:01,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:59:01,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:59:01,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:59:01,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:59:01,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:59:01,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:59:01,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:59:01,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:59:01,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:59:01,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:59:01,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:59:01,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:59:01,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:59:01,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:59:01,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:59:01,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:59:01,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:59:01,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:59:01,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:59:01,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:59:01,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:59:01,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:59:01,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:59:01,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:59:01,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:59:01,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:59:01,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:59:01,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:59:01,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:59:01,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:59:01,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:59:01,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:59:01,115 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:59:01,140 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:59:01,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:59:01,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:59:01,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:59:01,143 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:59:01,143 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:59:01,143 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:59:01,144 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:59:01,144 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:59:01,144 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:59:01,145 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:59:01,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:59:01,146 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:59:01,146 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:59:01,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:59:01,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:59:01,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:59:01,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:59:01,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:59:01,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:59:01,148 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:59:01,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:59:01,148 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:59:01,148 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:59:01,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:59:01,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:59:01,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:59:01,149 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:59:01,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:59:01,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:59:01,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:59:01,151 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:59:01,152 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:59:01,153 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 -> a4cdc62a5b5efdfba89a3280823bf73bd08d347a [2019-11-28 20:59:01,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:59:01,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:59:01,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:59:01,480 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:59:01,480 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:59:01,481 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2019-11-28 20:59:01,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abee91340/396375e947ec4dd38d74c8d5680c98d0/FLAG7a5d4b541 [2019-11-28 20:59:02,083 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:59:02,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2019-11-28 20:59:02,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abee91340/396375e947ec4dd38d74c8d5680c98d0/FLAG7a5d4b541 [2019-11-28 20:59:02,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abee91340/396375e947ec4dd38d74c8d5680c98d0 [2019-11-28 20:59:02,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:59:02,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:59:02,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:59:02,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:59:02,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:59:02,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:02,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d8c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02, skipping insertion in model container [2019-11-28 20:59:02,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:02,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:59:02,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:59:02,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:59:02,796 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:59:02,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:59:02,946 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:59:02,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02 WrapperNode [2019-11-28 20:59:02,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:59:02,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:59:02,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:59:02,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:59:02,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:02,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:03,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:59:03,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:59:03,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:59:03,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:59:03,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:03,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:03,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:03,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:03,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:03,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:03,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (1/1) ... [2019-11-28 20:59:03,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:59:03,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:59:03,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:59:03,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:59:03,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (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 [2019-11-28 20:59:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:59:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:59:03,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:59:03,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:59:03,979 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:59:03,979 INFO L287 CfgBuilder]: Removed 156 assume(true) statements. [2019-11-28 20:59:03,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:59:03 BoogieIcfgContainer [2019-11-28 20:59:03,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:59:03,982 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:59:03,982 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:59:03,986 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:59:03,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:59:03,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:59:02" (1/3) ... [2019-11-28 20:59:03,989 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3071fcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:59:03, skipping insertion in model container [2019-11-28 20:59:03,990 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:59:03,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:02" (2/3) ... [2019-11-28 20:59:03,991 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3071fcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:59:03, skipping insertion in model container [2019-11-28 20:59:03,991 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:59:03,991 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:59:03" (3/3) ... [2019-11-28 20:59:03,994 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2019-11-28 20:59:04,038 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:59:04,038 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:59:04,038 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:59:04,039 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:59:04,039 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:59:04,039 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:59:04,040 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:59:04,040 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:59:04,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 20:59:04,089 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 20:59:04,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:04,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:04,099 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:04,099 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:59:04,100 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:59:04,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 20:59:04,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 20:59:04,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:04,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:04,109 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:04,109 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:59:04,116 INFO L794 eck$LassoCheckResult]: Stem: 87#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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 5#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; 82#L570true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 83#L578true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 77#L496true assume 0 != main_~tmp~3; 36#L469true havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 46#L521-1true [2019-11-28 20:59:04,117 INFO L796 eck$LassoCheckResult]: Loop: 46#L521-1true assume !false; 40#L777true assume test_~splverifierCounter~0 < 4; 4#L778true test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 7#L786true assume !(0 != test_~tmp~8); 8#L786-1true test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 74#L796true assume !(0 != test_~tmp___0~2); 76#L796-1true test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 100#L806true assume 0 != test_~tmp___2~0; 85#L812-2true assume !(0 != ~pumpRunning~0); 72#L595true assume !(0 != ~systemActive~0); 109#L602true havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 94#L875-1true __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; 41#L521true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 46#L521-1true [2019-11-28 20:59:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:04,125 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:59:04,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:04,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125151613] [2019-11-28 20:59:04,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:04,547 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:04,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:04,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1679990654, now seen corresponding path program 1 times [2019-11-28 20:59:04,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:04,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165349950] [2019-11-28 20:59:04,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:04,588 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:04,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:04,592 INFO L82 PathProgramCache]: Analyzing trace with hash 34288284, now seen corresponding path program 1 times [2019-11-28 20:59:04,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:04,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071630001] [2019-11-28 20:59:04,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:59:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:59:04,778 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071630001] [2019-11-28 20:59:04,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:59:04,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:59:04,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796336478] [2019-11-28 20:59:04,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:59:04,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:59:04,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:59:04,889 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 6 states. [2019-11-28 20:59:05,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:59:05,047 INFO L93 Difference]: Finished difference Result 108 states and 154 transitions. [2019-11-28 20:59:05,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:59:05,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 154 transitions. [2019-11-28 20:59:05,061 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-28 20:59:05,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 147 transitions. [2019-11-28 20:59:05,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2019-11-28 20:59:05,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2019-11-28 20:59:05,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 147 transitions. [2019-11-28 20:59:05,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:59:05,073 INFO L688 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2019-11-28 20:59:05,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 147 transitions. [2019-11-28 20:59:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-28 20:59:05,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-28 20:59:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2019-11-28 20:59:05,105 INFO L711 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2019-11-28 20:59:05,106 INFO L591 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2019-11-28 20:59:05,106 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:59:05,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 147 transitions. [2019-11-28 20:59:05,108 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-28 20:59:05,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:05,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:05,109 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:05,109 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:59:05,110 INFO L794 eck$LassoCheckResult]: Stem: 328#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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 238#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; 239#L570 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 325#L578 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 324#L496 assume 0 != main_~tmp~3; 289#L469 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 290#L521-1 [2019-11-28 20:59:05,110 INFO L796 eck$LassoCheckResult]: Loop: 290#L521-1 assume !false; 293#L777 assume test_~splverifierCounter~0 < 4; 236#L778 test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 237#L786 assume !(0 != test_~tmp~8); 243#L786-1 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 244#L796 assume !(0 != test_~tmp___0~2); 322#L796-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 323#L806 assume 0 != test_~tmp___2~0; 327#L812-2 assume !(0 != ~pumpRunning~0); 279#L595 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 309#L653 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 310#L627-1 assume !(0 == ~pumpRunning~0); 314#L602 havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 331#L875-1 __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; 294#L521 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 290#L521-1 [2019-11-28 20:59:05,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:05,111 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 20:59:05,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:05,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945000412] [2019-11-28 20:59:05,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:05,225 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:05,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:05,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2003597159, now seen corresponding path program 1 times [2019-11-28 20:59:05,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:05,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295943954] [2019-11-28 20:59:05,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:59:05,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:59:05,245 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295943954] [2019-11-28 20:59:05,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:59:05,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:59:05,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339054170] [2019-11-28 20:59:05,250 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:59:05,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:59:05,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:59:05,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:59:05,252 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. cyclomatic complexity: 48 Second operand 3 states. [2019-11-28 20:59:05,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:59:05,380 INFO L93 Difference]: Finished difference Result 142 states and 195 transitions. [2019-11-28 20:59:05,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:59:05,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 195 transitions. [2019-11-28 20:59:05,389 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2019-11-28 20:59:05,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 142 states and 195 transitions. [2019-11-28 20:59:05,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 142 [2019-11-28 20:59:05,394 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2019-11-28 20:59:05,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 195 transitions. [2019-11-28 20:59:05,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:59:05,395 INFO L688 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2019-11-28 20:59:05,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states and 195 transitions. [2019-11-28 20:59:05,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2019-11-28 20:59:05,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-11-28 20:59:05,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2019-11-28 20:59:05,410 INFO L711 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2019-11-28 20:59:05,410 INFO L591 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2019-11-28 20:59:05,410 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:59:05,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 195 transitions. [2019-11-28 20:59:05,416 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2019-11-28 20:59:05,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:05,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:05,417 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:05,417 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] [2019-11-28 20:59:05,418 INFO L794 eck$LassoCheckResult]: Stem: 582#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~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string45.base, #t~string45.offset, 1);call write~init~int(110, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 2 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(102, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 3 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(80, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(117, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(109, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(112, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(32, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(77, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(101, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(116, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(104, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string68.base, #t~string68.offset, 1);call write~init~int(82, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(73, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(84, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 4 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(75, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 1 + #t~string72.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 487#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; 488#L570 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 578#L578 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 577#L496 assume 0 != main_~tmp~3; 538#L469 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 539#L521-1 [2019-11-28 20:59:05,418 INFO L796 eck$LassoCheckResult]: Loop: 539#L521-1 assume !false; 543#L777 assume test_~splverifierCounter~0 < 4; 485#L778 test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 486#L786 assume !(0 != test_~tmp~8); 492#L786-1 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 493#L796 assume !(0 != test_~tmp___0~2); 573#L796-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 576#L806 assume 0 != test_~tmp___2~0; 580#L812-2 assume !(0 != ~pumpRunning~0); 574#L595 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 562#L653 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 563#L627-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 521#L915-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 522#L920-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 554#L755-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 535#L755-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 502#L761-1 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 503#L631-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 567#L602 havoc __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_#t~ret37, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 615#L875-1 __utac_acc__Specification1_spec__1_#t~ret36 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret36;havoc __utac_acc__Specification1_spec__1_#t~ret36; 613#L521 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 539#L521-1 [2019-11-28 20:59:05,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:05,421 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 20:59:05,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:05,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118767965] [2019-11-28 20:59:05,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:05,547 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:05,549 INFO L82 PathProgramCache]: Analyzing trace with hash 456147493, now seen corresponding path program 1 times [2019-11-28 20:59:05,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:05,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449463930] [2019-11-28 20:59:05,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:05,564 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:05,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:05,565 INFO L82 PathProgramCache]: Analyzing trace with hash 912218687, now seen corresponding path program 1 times [2019-11-28 20:59:05,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:05,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32908266] [2019-11-28 20:59:05,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:05,655 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:05,793 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-28 20:59:35,383 WARN L192 SmtUtils]: Spent 29.52 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 20:59:50,447 WARN L192 SmtUtils]: Spent 15.06 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 20:59:50,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:59:50 BoogieIcfgContainer [2019-11-28 20:59:50,530 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:59:50,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:59:50,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:59:50,530 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:59:50,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:59:03" (3/4) ... [2019-11-28 20:59:50,534 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:59:50,595 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:59:50,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:59:50,598 INFO L168 Benchmark]: Toolchain (without parser) took 48265.67 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.7 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -283.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:50,598 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:59:50,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:50,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.72 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:50,601 INFO L168 Benchmark]: Boogie Preprocessor took 58.51 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. [2019-11-28 20:59:50,601 INFO L168 Benchmark]: RCFGBuilder took 901.34 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: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:50,602 INFO L168 Benchmark]: BuchiAutomizer took 46547.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -184.7 MB). Peak memory consumption was 365.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:50,603 INFO L168 Benchmark]: Witness Printer took 65.75 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:59:50,607 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 613.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.72 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.51 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 901.34 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: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46547.78 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -184.7 MB). Peak memory consumption was 365.4 MB. Max. memory is 11.5 GB. * Witness Printer took 65.75 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 142 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 45.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 142 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 298 SDtfs, 557 SDslu, 59 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 776]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5050} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=5055, NULL=5050, retValue_acc=0, NULL=0, NULL=0, NULL=10287, NULL=10288, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, NULL=5060, tmp=0, tmp___1=0, NULL=10289, NULL=10290, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d494c79=0, NULL=5059, tmp___0=0, NULL=17318, cleanupTimeShifts=4, NULL=17314, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39c6e507=0, NULL=16216, tmp=0, NULL=5053, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a314ee0=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5205de7d=0, retValue_acc=0, NULL=0, \result=0, NULL=10291, NULL=0, NULL=0, NULL=0, \result=1, NULL=5052, head=0, pumpRunning=0, NULL=17316, NULL=5056, \result=0, NULL=5051, tmp=1, NULL=0, NULL=5058, NULL=0, tmp=0, NULL=0, NULL=0, retValue_acc=1, \result=1, NULL=5057, NULL=0, tmp=1, tmp___2=53, tmp___0=0, retValue_acc=1, NULL=17313, splverifierCounter=0, \result=0, NULL=5054, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19916179=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@236f0e75=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bb1684e=0, head=0, NULL=0, NULL=17317, tmp=0, NULL=17315, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b318a27=0, NULL=5061, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5627844=53, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e5fad3=0, NULL=0, NULL=10292, NULL=10293} - 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; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] return (retValue_acc); [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 Loop: [L776] COND TRUE 1 [L778] COND TRUE splverifierCounter < 4 [L784] tmp = __VERIFIER_nondet_int() [L786] COND FALSE !(\read(tmp)) [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND FALSE !(\read(tmp___0)) [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L650] int tmp ; [L653] COND FALSE !(\read(pumpRunning)) [L624] int tmp ; [L627] COND TRUE ! pumpRunning [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; [L912] int retValue_acc ; [L915] COND TRUE waterLevel < 2 [L916] retValue_acc = 1 [L917] return (retValue_acc); [L753] tmp = isHighWaterSensorDry() [L755] COND TRUE \read(tmp) [L756] tmp___0 = 0 [L760] retValue_acc = tmp___0 [L761] return (retValue_acc); [L629] tmp = isHighWaterLevel() [L631] COND FALSE !(\read(tmp)) [L514] int tmp ; [L515] int tmp___0 ; [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] return (retValue_acc); [L519] tmp = isMethaneLevelCritical() [L521] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...