./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product50.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_product50.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 63231100df91d767f63e82b83b0d6c2eaec3a983 .............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:59:45,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:59:45,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:59:45,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:59:45,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:59:45,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:59:45,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:59:45,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:59:45,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:59:45,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:59:45,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:59:45,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:59:45,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:59:45,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:59:45,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:59:45,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:59:45,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:59:45,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:59:45,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:59:45,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:59:45,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:59:45,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:59:45,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:59:45,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:59:45,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:59:45,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:59:45,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:59:45,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:59:45,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:59:45,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:59:45,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:59:45,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:59:45,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:59:45,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:59:45,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:59:45,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:59:45,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:59:45,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:59:45,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:59:45,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:59:45,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:59:45,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:59:45,114 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:59:45,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:59:45,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:59:45,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:59:45,118 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:59:45,118 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:59:45,118 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:59:45,118 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:59:45,119 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:59:45,119 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:59:45,120 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:59:45,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:59:45,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:59:45,121 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:59:45,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:59:45,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:59:45,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:59:45,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:59:45,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:59:45,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:59:45,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:59:45,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:59:45,123 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:59:45,124 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:59:45,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:59:45,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:59:45,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:59:45,125 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:59:45,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:59:45,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:59:45,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:59:45,127 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:59:45,128 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:59:45,129 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 -> 63231100df91d767f63e82b83b0d6c2eaec3a983 [2019-11-28 20:59:45,434 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:59:45,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:59:45,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:59:45,451 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:59:45,452 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:59:45,452 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2019-11-28 20:59:45,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d0537dd/1ce33792d5294b4ca0898ac7da4b8283/FLAG2d7451da5 [2019-11-28 20:59:46,052 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:59:46,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2019-11-28 20:59:46,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d0537dd/1ce33792d5294b4ca0898ac7da4b8283/FLAG2d7451da5 [2019-11-28 20:59:46,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d0537dd/1ce33792d5294b4ca0898ac7da4b8283 [2019-11-28 20:59:46,413 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:59:46,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:59:46,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:59:46,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:59:46,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:59:46,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:59:46" (1/1) ... [2019-11-28 20:59:46,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44db52ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:46, skipping insertion in model container [2019-11-28 20:59:46,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:59:46" (1/1) ... [2019-11-28 20:59:46,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:59:46,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:59:46,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:59:46,952 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:59:47,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:59:47,098 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:59:47,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47 WrapperNode [2019-11-28 20:59:47,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:59:47,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:59:47,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:59:47,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:59:47,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (1/1) ... [2019-11-28 20:59:47,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (1/1) ... [2019-11-28 20:59:47,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:59:47,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:59:47,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:59:47,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:59:47,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (1/1) ... [2019-11-28 20:59:47,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (1/1) ... [2019-11-28 20:59:47,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (1/1) ... [2019-11-28 20:59:47,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (1/1) ... [2019-11-28 20:59:47,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (1/1) ... [2019-11-28 20:59:47,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (1/1) ... [2019-11-28 20:59:47,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (1/1) ... [2019-11-28 20:59:47,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:59:47,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:59:47,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:59:47,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:59:47,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (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 20:59:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:59:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:59:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:59:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:59:48,132 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:59:48,132 INFO L287 CfgBuilder]: Removed 158 assume(true) statements. [2019-11-28 20:59:48,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:59:48 BoogieIcfgContainer [2019-11-28 20:59:48,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:59:48,135 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:59:48,135 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:59:48,139 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:59:48,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:59:48,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:59:46" (1/3) ... [2019-11-28 20:59:48,141 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2455a010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:59:48, skipping insertion in model container [2019-11-28 20:59:48,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:59:48,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:59:47" (2/3) ... [2019-11-28 20:59:48,142 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2455a010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:59:48, skipping insertion in model container [2019-11-28 20:59:48,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:59:48,143 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:59:48" (3/3) ... [2019-11-28 20:59:48,145 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2019-11-28 20:59:48,193 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:59:48,193 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:59:48,193 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:59:48,194 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:59:48,194 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:59:48,194 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:59:48,195 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:59:48,195 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:59:48,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-11-28 20:59:48,246 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-28 20:59:48,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:48,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:48,256 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:48,257 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:59:48,257 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:59:48,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2019-11-28 20:59:48,265 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2019-11-28 20:59:48,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:48,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:48,266 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:48,267 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:59:48,273 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 14#L-1true havoc main_#res;havoc main_#t~ret12, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 69#L303true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 92#L311true main_#t~ret12 := valid_product_#res;main_~tmp~1 := main_#t~ret12;havoc main_#t~ret12; 96#L267true assume 0 != main_~tmp~1; 46#L240true havoc test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_#t~nondet17, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 11#L51-1true [2019-11-28 20:59:48,274 INFO L796 eck$LassoCheckResult]: Loop: 11#L51-1true assume !false; 57#L328true assume test_~splverifierCounter~0 < 4; 16#L329true test_~tmp~2 := test_#t~nondet14;havoc test_#t~nondet14; 29#L337true assume !(0 != test_~tmp~2); 30#L337-1true test_~tmp___0~1 := test_#t~nondet15;havoc test_#t~nondet15; 83#L347true assume !(0 != test_~tmp___0~1); 87#L347-1true test_~tmp___2~0 := test_#t~nondet16;havoc test_#t~nondet16; 115#L357true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 12#L365-2true assume !(0 != ~pumpRunning~0); 80#L402true assume !(0 != ~systemActive~0); 4#L409true havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 63#L119true __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 13#L51true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 11#L51-1true [2019-11-28 20:59:48,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:48,281 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:59:48,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:48,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713696103] [2019-11-28 20:59:48,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:48,653 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:48,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1678820861, now seen corresponding path program 1 times [2019-11-28 20:59:48,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:48,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102363371] [2019-11-28 20:59:48,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:59:48,727 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 20:59:48,728 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102363371] [2019-11-28 20:59:48,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:59:48,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:59:48,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809195928] [2019-11-28 20:59:48,739 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:59:48,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:59:48,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:59:48,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:59:48,759 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 3 states. [2019-11-28 20:59:48,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:59:48,815 INFO L93 Difference]: Finished difference Result 114 states and 164 transitions. [2019-11-28 20:59:48,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:59:48,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 164 transitions. [2019-11-28 20:59:48,823 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 20:59:48,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2019-11-28 20:59:48,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2019-11-28 20:59:48,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2019-11-28 20:59:48,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2019-11-28 20:59:48,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:59:48,833 INFO L688 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-11-28 20:59:48,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2019-11-28 20:59:48,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-11-28 20:59:48,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-28 20:59:48,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2019-11-28 20:59:48,874 INFO L711 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-11-28 20:59:48,874 INFO L591 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-11-28 20:59:48,874 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:59:48,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2019-11-28 20:59:48,877 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-28 20:59:48,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:48,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:48,878 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:48,878 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:59:48,879 INFO L794 eck$LassoCheckResult]: Stem: 334#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 260#L-1 havoc main_#res;havoc main_#t~ret12, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 261#L303 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 320#L311 main_#t~ret12 := valid_product_#res;main_~tmp~1 := main_#t~ret12;havoc main_#t~ret12; 333#L267 assume 0 != main_~tmp~1; 305#L240 havoc test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_#t~nondet17, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 254#L51-1 [2019-11-28 20:59:48,879 INFO L796 eck$LassoCheckResult]: Loop: 254#L51-1 assume !false; 255#L328 assume test_~splverifierCounter~0 < 4; 264#L329 test_~tmp~2 := test_#t~nondet14;havoc test_#t~nondet14; 265#L337 assume !(0 != test_~tmp~2); 288#L337-1 test_~tmp___0~1 := test_#t~nondet15;havoc test_#t~nondet15; 289#L347 assume !(0 != test_~tmp___0~1); 284#L347-1 test_~tmp___2~0 := test_#t~nondet16;havoc test_#t~nondet16; 331#L357 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 250#L365-2 assume !(0 != ~pumpRunning~0); 256#L402 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 323#L460 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret18, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 324#L434-1 assume !(0 == ~pumpRunning~0); 240#L409 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 241#L119 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 258#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 254#L51-1 [2019-11-28 20:59:48,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:48,879 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 20:59:48,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:48,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724591155] [2019-11-28 20:59:48,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:49,015 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:49,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:49,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1079829887, now seen corresponding path program 1 times [2019-11-28 20:59:49,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:49,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346796149] [2019-11-28 20:59:49,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:59:49,050 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 20:59:49,051 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346796149] [2019-11-28 20:59:49,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:59:49,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:59:49,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937795468] [2019-11-28 20:59:49,052 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:59:49,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:59:49,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:59:49,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:59:49,053 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand 3 states. [2019-11-28 20:59:49,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:59:49,218 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2019-11-28 20:59:49,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:59:49,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2019-11-28 20:59:49,222 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2019-11-28 20:59:49,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2019-11-28 20:59:49,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2019-11-28 20:59:49,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2019-11-28 20:59:49,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2019-11-28 20:59:49,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:59:49,227 INFO L688 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2019-11-28 20:59:49,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2019-11-28 20:59:49,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2019-11-28 20:59:49,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-28 20:59:49,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2019-11-28 20:59:49,238 INFO L711 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2019-11-28 20:59:49,238 INFO L591 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2019-11-28 20:59:49,238 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:59:49,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2019-11-28 20:59:49,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2019-11-28 20:59:49,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:59:49,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:59:49,241 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:59:49,241 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 20:59:49,242 INFO L794 eck$LassoCheckResult]: Stem: 597#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(13);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string5.base, #t~string5.offset, 1);call write~init~int(77, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(101, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(116, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(104, #t~string5.base, 4 + #t~string5.offset, 1);call write~init~int(58, #t~string5.base, 5 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 6 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string7.base, #t~string7.offset, 1);call write~init~int(82, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(73, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(84, #t~string7.base, 3 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 4 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(75, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string11.base, #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 1 + #t~string11.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 521#L-1 havoc main_#res;havoc main_#t~ret12, main_~retValue_acc~4, main_~tmp~1;havoc main_~retValue_acc~4;havoc main_~tmp~1; 522#L303 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 583#L311 main_#t~ret12 := valid_product_#res;main_~tmp~1 := main_#t~ret12;havoc main_#t~ret12; 596#L267 assume 0 != main_~tmp~1; 567#L240 havoc test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_#t~nondet17, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 516#L51-1 [2019-11-28 20:59:49,242 INFO L796 eck$LassoCheckResult]: Loop: 516#L51-1 assume !false; 517#L328 assume test_~splverifierCounter~0 < 4; 525#L329 test_~tmp~2 := test_#t~nondet14;havoc test_#t~nondet14; 526#L337 assume !(0 != test_~tmp~2); 550#L337-1 test_~tmp___0~1 := test_#t~nondet15;havoc test_#t~nondet15; 551#L347 assume !(0 != test_~tmp___0~1); 546#L347-1 test_~tmp___2~0 := test_#t~nondet16;havoc test_#t~nondet16; 594#L357 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 511#L365-2 assume !(0 != ~pumpRunning~0); 518#L402 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 586#L460 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret18, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 587#L434-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret37, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 606#L159-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 533#L164-1 isHighWaterLevel_#t~ret37 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret37;havoc isHighWaterLevel_#t~ret37; 534#L562-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; 568#L562-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 556#L568-1 processEnvironment__wrappee__highWaterSensor_#t~ret18 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret18;havoc processEnvironment__wrappee__highWaterSensor_#t~ret18; 557#L438-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 501#L409 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 502#L119 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 519#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 516#L51-1 [2019-11-28 20:59:49,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:49,243 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 20:59:49,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:49,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085902605] [2019-11-28 20:59:49,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:49,328 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:49,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:49,331 INFO L82 PathProgramCache]: Analyzing trace with hash -246413043, now seen corresponding path program 1 times [2019-11-28 20:59:49,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:49,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395007790] [2019-11-28 20:59:49,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:49,366 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:49,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:59:49,367 INFO L82 PathProgramCache]: Analyzing trace with hash 209658151, now seen corresponding path program 1 times [2019-11-28 20:59:49,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:59:49,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310581358] [2019-11-28 20:59:49,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:59:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:59:49,474 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:59:49,655 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-11-28 21:00:17,866 WARN L192 SmtUtils]: Spent 28.13 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:00:31,529 WARN L192 SmtUtils]: Spent 13.66 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:00:31,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:00:31 BoogieIcfgContainer [2019-11-28 21:00:31,613 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:00:31,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:00:31,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:00:31,614 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:00:31,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:59:48" (3/4) ... [2019-11-28 21:00:31,618 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:00:31,735 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:00:31,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:00:31,748 INFO L168 Benchmark]: Toolchain (without parser) took 45322.70 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 294.1 MB). Free memory was 961.7 MB in the beginning and 1.3 GB in the end (delta: -306.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:00:31,748 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:00:31,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -138.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:31,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:31,751 INFO L168 Benchmark]: Boogie Preprocessor took 45.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:00:31,755 INFO L168 Benchmark]: RCFGBuilder took 908.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:31,756 INFO L168 Benchmark]: BuchiAutomizer took 43478.51 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -240.5 MB). Peak memory consumption was 390.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:00:31,756 INFO L168 Benchmark]: Witness Printer took 121.73 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:00:31,767 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 683.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -138.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 908.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43478.51 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 175.1 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -240.5 MB). Peak memory consumption was 390.9 MB. Max. memory is 11.5 GB. * Witness Printer took 121.73 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 43.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 42.9s. 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 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 319 SDtfs, 264 SDslu, 66 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 327]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5226} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=5226, retValue_acc=0, NULL=11164, NULL=5231, NULL=0, NULL=0, NULL=5234, methaneLevelCritical=0, tmp___0=0, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55e4f503=0, NULL=0, retValue_acc=0, NULL=12269, NULL=0, tmp___1=0, tmp___0=0, NULL=11160, NULL=12266, tmp=0, cleanupTimeShifts=4, NULL=5235, NULL=0, systemActive=1, waterLevel=1, NULL=12265, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9eddc35=0, NULL=0, NULL=0, NULL=12268, \result=0, NULL=11163, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=11165, \result=0, NULL=0, NULL=11161, tmp=1, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@561214d6=0, NULL=0, tmp=0, \result=1, retValue_acc=1, NULL=5233, NULL=12264, NULL=5228, NULL=0, NULL=5230, tmp___2=49, tmp=1, NULL=5229, tmp___0=0, NULL=5232, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20f8e5c6=0, \result=0, NULL=5227, NULL=11166, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62db6c65=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d254bd4=49, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76118f13=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5255bffc=0, NULL=12267, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28893496=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ce5df72=0, tmp=0, NULL=0, NULL=0, NULL=11162, NULL=0, NULL=11159, NULL=11167, NULL=0, NULL=0, NULL=5236} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L76] int waterLevel = 1; [L77] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L395] int pumpRunning = 0; [L396] int systemActive = 1; [L769] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L258] int retValue_acc ; [L259] int tmp ; [L307] int retValue_acc ; [L310] retValue_acc = 1 [L311] return (retValue_acc); [L265] tmp = valid_product() [L267] COND TRUE \read(tmp) [L318] int splverifierCounter ; [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L322] int tmp___2 ; [L325] splverifierCounter = 0 Loop: [L327] COND TRUE 1 [L329] COND TRUE splverifierCounter < 4 [L335] tmp = __VERIFIER_nondet_int() [L337] COND FALSE !(\read(tmp)) [L345] tmp___0 = __VERIFIER_nondet_int() [L347] COND FALSE !(\read(tmp___0)) [L355] tmp___2 = __VERIFIER_nondet_int() [L357] COND TRUE \read(tmp___2) [L595] systemActive = 1 [L402] COND FALSE !(\read(pumpRunning)) [L409] COND TRUE \read(systemActive) [L457] int tmp ; [L460] COND FALSE !(\read(pumpRunning)) [L431] int tmp ; [L434] COND TRUE ! pumpRunning [L554] int retValue_acc ; [L555] int tmp ; [L556] int tmp___0 ; [L156] int retValue_acc ; [L159] COND TRUE waterLevel < 2 [L160] retValue_acc = 1 [L161] return (retValue_acc); [L560] tmp = isHighWaterSensorDry() [L562] COND TRUE \read(tmp) [L563] tmp___0 = 0 [L567] retValue_acc = tmp___0 [L568] return (retValue_acc); [L436] tmp = isHighWaterLevel() [L438] COND FALSE !(\read(tmp)) [L44] int tmp ; [L45] int tmp___0 ; [L115] int retValue_acc ; [L118] retValue_acc = methaneLevelCritical [L119] return (retValue_acc); [L49] tmp = isMethaneLevelCritical() [L51] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...