./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product20.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_product20.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 fdf87a043cfa0322a32123bf9fd837be20929f79 ........................................................................................................................................................................................................................................................................................................................................................... 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 20:58:07,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:58:07,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:58:07,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:58:07,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:58:07,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:58:07,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:58:07,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:58:07,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:58:07,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:58:07,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:58:07,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:58:07,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:58:07,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:58:07,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:58:07,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:58:07,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:58:07,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:58:07,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:58:07,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:58:07,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:58:07,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:58:07,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:58:07,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:58:07,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:58:07,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:58:07,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:58:07,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:58:07,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:58:07,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:58:07,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:58:07,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:58:07,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:58:07,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:58:07,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:58:07,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:58:07,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:58:07,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:58:07,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:58:07,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:58:07,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:58:07,549 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:58:07,585 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:58:07,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:58:07,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:58:07,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:58:07,588 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:58:07,588 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:58:07,589 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:58:07,589 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:58:07,589 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:58:07,589 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:58:07,590 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:58:07,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:58:07,591 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:58:07,591 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:58:07,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:58:07,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:58:07,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:58:07,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:58:07,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:58:07,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:58:07,594 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:58:07,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:58:07,594 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:58:07,595 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:58:07,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:58:07,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:58:07,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:58:07,596 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:58:07,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:58:07,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:58:07,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:58:07,598 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:58:07,599 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:58:07,599 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 -> fdf87a043cfa0322a32123bf9fd837be20929f79 [2019-11-28 20:58:07,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:58:07,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:58:07,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:58:07,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:58:07,936 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:58:07,937 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c [2019-11-28 20:58:08,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fd34370/ae524d30ff914b5dbcfc57737b345dec/FLAGf7bd50500 [2019-11-28 20:58:08,557 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:58:08,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product20.cil.c [2019-11-28 20:58:08,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fd34370/ae524d30ff914b5dbcfc57737b345dec/FLAGf7bd50500 [2019-11-28 20:58:08,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fd34370/ae524d30ff914b5dbcfc57737b345dec [2019-11-28 20:58:08,867 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:58:08,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:58:08,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:08,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:58:08,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:58:08,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf43843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:08, skipping insertion in model container [2019-11-28 20:58:08,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:58:08" (1/1) ... [2019-11-28 20:58:08,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:58:08,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:58:09,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:09,377 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:58:09,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:58:09,494 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:58:09,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09 WrapperNode [2019-11-28 20:58:09,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:58:09,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:09,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:58:09,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:58:09,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:58:09,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:58:09,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:58:09,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:58:09,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (1/1) ... [2019-11-28 20:58:09,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:58:09,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:58:09,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:58:09,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:58:09,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (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 20:58:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:58:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 20:58:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:58:09,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:58:10,434 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:58:10,434 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-11-28 20:58:10,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:10 BoogieIcfgContainer [2019-11-28 20:58:10,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:58:10,437 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:58:10,437 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:58:10,441 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:58:10,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:10,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:58:08" (1/3) ... [2019-11-28 20:58:10,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d5862c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:10, skipping insertion in model container [2019-11-28 20:58:10,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:10,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:58:09" (2/3) ... [2019-11-28 20:58:10,445 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d5862c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:58:10, skipping insertion in model container [2019-11-28 20:58:10,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:58:10,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:10" (3/3) ... [2019-11-28 20:58:10,448 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product20.cil.c [2019-11-28 20:58:10,494 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:58:10,494 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:58:10,494 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:58:10,494 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:58:10,494 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:58:10,495 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:58:10,495 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:58:10,495 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:58:10,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-28 20:58:10,537 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 20:58:10,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:10,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:10,545 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,545 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,545 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:58:10,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-28 20:58:10,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 20:58:10,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:10,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:10,553 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,553 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:10,559 INFO L794 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(77, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(101, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(116, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(104, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string29.base, #t~string29.offset, 1);call write~init~int(82, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(73, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(84, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 4 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(75, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 13#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 29#L885true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 38#L893true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 36#L139true assume 0 != main_~tmp~0; 57#L112true havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 66#L906-1true [2019-11-28 20:58:10,559 INFO L796 eck$LassoCheckResult]: Loop: 66#L906-1true assume !false; 45#L166true assume test_~splverifierCounter~0 < 4; 61#L167true test_~tmp~1 := test_#t~nondet1;havoc test_#t~nondet1; 3#L175true assume !(0 != test_~tmp~1); 22#L175-1true test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; 75#L185true assume !(0 != test_~tmp___0~0); 72#L185-1true test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; 53#L195true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 67#L203-1true assume !(0 != ~pumpRunning~0); 43#L239true assume !(0 != ~systemActive~0); 50#L246true havoc __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_#t~ret71, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 44#L451true __utac_acc__Specification1_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; 11#L906true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 66#L906-1true [2019-11-28 20:58:10,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:10,567 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 20:58:10,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:10,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437461165] [2019-11-28 20:58:10,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,014 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:11,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1672140724, now seen corresponding path program 1 times [2019-11-28 20:58:11,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:11,017 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981912419] [2019-11-28 20:58:11,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:58:11,078 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 20:58:11,078 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981912419] [2019-11-28 20:58:11,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:58:11,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:58:11,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777242915] [2019-11-28 20:58:11,086 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:58:11,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:58:11,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:58:11,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:58:11,107 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2019-11-28 20:58:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:58:11,187 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2019-11-28 20:58:11,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:58:11,191 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2019-11-28 20:58:11,197 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2019-11-28 20:58:11,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2019-11-28 20:58:11,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2019-11-28 20:58:11,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2019-11-28 20:58:11,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2019-11-28 20:58:11,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:58:11,210 INFO L688 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2019-11-28 20:58:11,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2019-11-28 20:58:11,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2019-11-28 20:58:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-28 20:58:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2019-11-28 20:58:11,259 INFO L711 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2019-11-28 20:58:11,259 INFO L591 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2019-11-28 20:58:11,259 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:58:11,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2019-11-28 20:58:11,262 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2019-11-28 20:58:11,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:58:11,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:58:11,263 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:58:11,263 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:58:11,264 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(13);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(77, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(101, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(116, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(104, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string29.base, #t~string29.offset, 1);call write~init~int(82, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(73, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(84, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 4 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(75, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 1 + #t~string33.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 245#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 246#L885 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 267#L893 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 273#L139 assume 0 != main_~tmp~0; 274#L112 havoc test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_#t~nondet4, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 229#L906-1 [2019-11-28 20:58:11,264 INFO L796 eck$LassoCheckResult]: Loop: 229#L906-1 assume !false; 311#L166 assume test_~splverifierCounter~0 < 4; 310#L167 test_~tmp~1 := test_#t~nondet1;havoc test_#t~nondet1; 309#L175 assume !(0 != test_~tmp~1); 307#L175-1 test_~tmp___0~0 := test_#t~nondet2;havoc test_#t~nondet2; 306#L185 assume !(0 != test_~tmp___0~0); 304#L185-1 test_~tmp___2~0 := test_#t~nondet3;havoc test_#t~nondet3; 292#L195 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 293#L203-1 assume !(0 != ~pumpRunning~0); 271#L239 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret5, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 281#L271 assume !(0 != ~pumpRunning~0); 315#L246 havoc __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_#t~ret71, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 314#L451 __utac_acc__Specification1_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; 241#L906 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 229#L906-1 [2019-11-28 20:58:11,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:11,265 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 20:58:11,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:11,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797446343] [2019-11-28 20:58:11,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,375 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:11,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:11,376 INFO L82 PathProgramCache]: Analyzing trace with hash -323747813, now seen corresponding path program 1 times [2019-11-28 20:58:11,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:11,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948603277] [2019-11-28 20:58:11,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,391 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:11,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:58:11,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1279291713, now seen corresponding path program 1 times [2019-11-28 20:58:11,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:58:11,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987818516] [2019-11-28 20:58:11,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:58:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:58:11,485 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:58:36,673 WARN L192 SmtUtils]: Spent 25.04 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 20:58:50,685 WARN L192 SmtUtils]: Spent 14.01 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 20:58:50,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:58:50 BoogieIcfgContainer [2019-11-28 20:58:50,760 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:58:50,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:58:50,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:58:50,761 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:58:50,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:58:10" (3/4) ... [2019-11-28 20:58:50,765 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:58:50,824 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:58:50,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:58:50,827 INFO L168 Benchmark]: Toolchain (without parser) took 41957.86 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.2 MB). Free memory was 960.4 MB in the beginning and 858.1 MB in the end (delta: 102.3 MB). Peak memory consumption was 419.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,827 INFO L168 Benchmark]: CDTParser took 0.27 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 20:58:50,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.63 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,830 INFO L168 Benchmark]: Boogie Preprocessor took 50.87 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,830 INFO L168 Benchmark]: RCFGBuilder took 804.43 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: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,831 INFO L168 Benchmark]: BuchiAutomizer took 40322.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.1 GB in the beginning and 858.1 MB in the end (delta: 196.2 MB). Peak memory consumption was 389.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:58:50,831 INFO L168 Benchmark]: Witness Printer took 64.61 ms. Allocated memory is still 1.3 GB. Free memory is still 858.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:58:50,835 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 627.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.63 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.87 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 804.43 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: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 40322.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.1 GB in the beginning and 858.1 MB in the end (delta: 196.2 MB). Peak memory consumption was 389.2 MB. Max. memory is 11.5 GB. * Witness Printer took 64.61 ms. Allocated memory is still 1.3 GB. Free memory is still 858.1 MB. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 126 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 40.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 39.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 126 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 101 SDtfs, 97 SDslu, 89 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 165]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=375} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=8377, NULL=8382, NULL=0, retValue_acc=0, NULL=375, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44c10350=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@237ef382=51, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55fef4d4=0, NULL=1170, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b0491a1=0, NULL=1164, NULL=8381, methaneLevelCritical=0, NULL=1165, retValue_acc=1, NULL=0, NULL=1161, NULL=0, tmp___1=0, NULL=377, tmp___0=0, NULL=0, NULL=1166, cleanupTimeShifts=4, tmp=0, NULL=1172, NULL=1167, NULL=1163, NULL=1173, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31b17f31=0, NULL=0, NULL=8379, NULL=0, retValue_acc=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=1162, head=0, pumpRunning=0, tmp=1, NULL=8378, \result=0, NULL=1168, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ceee9dd=0, NULL=8376, NULL=0, NULL=0, NULL=0, NULL=8380, NULL=376, tmp___2=51, splverifierCounter=0, \result=0, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6262ff54=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@402389c4=0, NULL=1174, NULL=0, NULL=1171, NULL=0, NULL=0, NULL=8375, NULL=8383, NULL=1169} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int cleanupTimeShifts = 4; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L408] int waterLevel = 1; [L409] int methaneLevelCritical = 0; [L666] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L130] int retValue_acc ; [L131] int tmp ; [L889] int retValue_acc ; [L892] retValue_acc = 1 [L893] return (retValue_acc); [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L156] int splverifierCounter ; [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L160] int tmp___2 ; [L163] splverifierCounter = 0 Loop: [L165] COND TRUE 1 [L167] COND TRUE splverifierCounter < 4 [L173] tmp = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp)) [L183] tmp___0 = __VERIFIER_nondet_int() [L185] COND FALSE !(\read(tmp___0)) [L193] tmp___2 = __VERIFIER_nondet_int() [L195] COND TRUE \read(tmp___2) [L402] systemActive = 1 [L239] COND FALSE !(\read(pumpRunning)) [L246] COND TRUE \read(systemActive) [L268] int tmp ; [L271] COND FALSE !(\read(pumpRunning)) [L899] int tmp ; [L900] int tmp___0 ; [L447] int retValue_acc ; [L450] retValue_acc = methaneLevelCritical [L451] return (retValue_acc); [L904] tmp = isMethaneLevelCritical() [L906] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...