./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product07.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_spec2_product07.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 c39001161d93972d05784cb6dbc5024ef34abe15 .................................................................................................................................................................................................................................................................................................................................................................... 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 21:01:10,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:01:10,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:01:10,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:01:10,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:01:10,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:01:10,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:01:10,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:01:10,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:01:10,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:01:10,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:01:10,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:01:10,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:01:10,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:01:10,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:01:10,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:01:10,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:01:10,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:01:10,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:01:10,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:01:10,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:01:10,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:01:10,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:01:10,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:01:10,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:01:10,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:01:10,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:01:10,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:01:10,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:01:10,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:01:10,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:01:10,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:01:10,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:01:10,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:01:10,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:01:10,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:01:10,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:01:10,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:01:10,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:01:10,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:01:10,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:01:10,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:01:10,728 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:01:10,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:01:10,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:01:10,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:01:10,733 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:01:10,733 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:01:10,733 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:01:10,733 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:01:10,734 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:01:10,734 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:01:10,734 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:01:10,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:01:10,734 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:01:10,735 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:01:10,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:01:10,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:01:10,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:01:10,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:01:10,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:01:10,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:01:10,737 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:01:10,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:01:10,737 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:01:10,737 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:01:10,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:01:10,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:01:10,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:01:10,738 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:01:10,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:01:10,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:01:10,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:01:10,739 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:01:10,740 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:01:10,740 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 -> c39001161d93972d05784cb6dbc5024ef34abe15 [2019-11-28 21:01:11,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:01:11,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:01:11,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:01:11,075 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:01:11,075 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:01:11,076 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2019-11-28 21:01:11,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f3931c74/09a7af5ddc394ab68f6e52285dd9e6fc/FLAGf25255f61 [2019-11-28 21:01:11,632 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:01:11,633 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2019-11-28 21:01:11,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f3931c74/09a7af5ddc394ab68f6e52285dd9e6fc/FLAGf25255f61 [2019-11-28 21:01:11,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f3931c74/09a7af5ddc394ab68f6e52285dd9e6fc [2019-11-28 21:01:11,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:01:11,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:01:11,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:01:11,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:01:11,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:01:11,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:01:11" (1/1) ... [2019-11-28 21:01:11,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a736f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:11, skipping insertion in model container [2019-11-28 21:01:11,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:01:11" (1/1) ... [2019-11-28 21:01:12,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:01:12,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:01:12,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:01:12,587 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:01:12,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:01:12,720 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:01:12,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12 WrapperNode [2019-11-28 21:01:12,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:01:12,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:01:12,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:01:12,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:01:12,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (1/1) ... [2019-11-28 21:01:12,753 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (1/1) ... [2019-11-28 21:01:12,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:01:12,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:01:12,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:01:12,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:01:12,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (1/1) ... [2019-11-28 21:01:12,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (1/1) ... [2019-11-28 21:01:12,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (1/1) ... [2019-11-28 21:01:12,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (1/1) ... [2019-11-28 21:01:12,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (1/1) ... [2019-11-28 21:01:12,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (1/1) ... [2019-11-28 21:01:12,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (1/1) ... [2019-11-28 21:01:12,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:01:12,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:01:12,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:01:12,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:01:12,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (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 21:01:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:01:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:01:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:01:12,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:01:13,681 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:01:13,682 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-11-28 21:01:13,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:01:13 BoogieIcfgContainer [2019-11-28 21:01:13,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:01:13,684 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:01:13,684 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:01:13,688 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:01:13,689 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:01:13,689 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:01:11" (1/3) ... [2019-11-28 21:01:13,691 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48f3a08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:01:13, skipping insertion in model container [2019-11-28 21:01:13,691 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:01:13,691 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:01:12" (2/3) ... [2019-11-28 21:01:13,692 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48f3a08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:01:13, skipping insertion in model container [2019-11-28 21:01:13,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:01:13,692 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:01:13" (3/3) ... [2019-11-28 21:01:13,695 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product07.cil.c [2019-11-28 21:01:13,743 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:01:13,743 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:01:13,743 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:01:13,743 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:01:13,744 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:01:13,744 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:01:13,744 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:01:13,744 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:01:13,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-28 21:01:13,785 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:01:13,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:01:13,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:01:13,795 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:01:13,795 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:01:13,795 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:01:13,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states. [2019-11-28 21:01:13,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:01:13,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:01:13,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:01:13,803 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:01:13,803 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:01:13,809 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.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(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 49#L374true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 52#L382true main_#t~ret68 := valid_product_#res;main_~tmp~5 := main_#t~ret68;havoc main_#t~ret68; 43#L846true assume 0 != main_~tmp~5; 61#L821true ~methAndRunningLastTime~0 := 0; 5#L866true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, 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; 7#L877-1true [2019-11-28 21:01:13,810 INFO L796 eck$LassoCheckResult]: Loop: 7#L877-1true assume !false; 21#L293true assume test_~splverifierCounter~0 < 4; 47#L294true test_~tmp~1 := test_#t~nondet28;havoc test_#t~nondet28; 74#L302true assume !(0 != test_~tmp~1); 71#L302-1true test_~tmp___0~0 := test_#t~nondet29;havoc test_#t~nondet29; 45#L312true assume !(0 != test_~tmp___0~0); 48#L312-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 25#L322true assume 0 != test_~tmp___2~0; 69#L328-1true assume !(0 != ~pumpRunning~0); 57#L140true assume !(0 != ~systemActive~0); 28#L147true havoc __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_#t~ret70, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;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; 59#L89-1true __utac_acc__Specification2_spec__2_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret69;havoc __utac_acc__Specification2_spec__2_#t~ret69; 3#L877true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 7#L877-1true [2019-11-28 21:01:13,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:01:13,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:01:13,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:01:13,828 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878574986] [2019-11-28 21:01:13,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:01:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:14,251 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:01:14,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:01:14,253 INFO L82 PathProgramCache]: Analyzing trace with hash 10972499, now seen corresponding path program 1 times [2019-11-28 21:01:14,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:01:14,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113537962] [2019-11-28 21:01:14,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:01:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:14,270 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:01:14,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:01:14,272 INFO L82 PathProgramCache]: Analyzing trace with hash 844269005, now seen corresponding path program 1 times [2019-11-28 21:01:14,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:01:14,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453912126] [2019-11-28 21:01:14,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:01:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:01:14,423 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 21:01:14,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453912126] [2019-11-28 21:01:14,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:01:14,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:01:14,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861990640] [2019-11-28 21:01:14,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:01:14,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:01:14,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:01:14,573 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 6 states. [2019-11-28 21:01:14,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:01:14,786 INFO L93 Difference]: Finished difference Result 190 states and 265 transitions. [2019-11-28 21:01:14,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 21:01:14,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 190 states and 265 transitions. [2019-11-28 21:01:14,798 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 119 [2019-11-28 21:01:14,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 190 states to 169 states and 244 transitions. [2019-11-28 21:01:14,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 169 [2019-11-28 21:01:14,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 169 [2019-11-28 21:01:14,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 244 transitions. [2019-11-28 21:01:14,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:01:14,811 INFO L688 BuchiCegarLoop]: Abstraction has 169 states and 244 transitions. [2019-11-28 21:01:14,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 244 transitions. [2019-11-28 21:01:14,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 109. [2019-11-28 21:01:14,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-28 21:01:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2019-11-28 21:01:14,871 INFO L711 BuchiCegarLoop]: Abstraction has 109 states and 157 transitions. [2019-11-28 21:01:14,871 INFO L591 BuchiCegarLoop]: Abstraction has 109 states and 157 transitions. [2019-11-28 21:01:14,871 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:01:14,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 157 transitions. [2019-11-28 21:01:14,882 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2019-11-28 21:01:14,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:01:14,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:01:14,884 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:01:14,885 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:01:14,885 INFO L794 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.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(25);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0; 292#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~5;havoc main_~retValue_acc~9;havoc main_~tmp~5; 293#L374 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 337#L382 main_#t~ret68 := valid_product_#res;main_~tmp~5 := main_#t~ret68;havoc main_#t~ret68; 332#L846 assume 0 != main_~tmp~5; 333#L821 ~methAndRunningLastTime~0 := 0; 286#L866 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, 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; 285#L877-1 [2019-11-28 21:01:14,885 INFO L796 eck$LassoCheckResult]: Loop: 285#L877-1 assume !false; 287#L293 assume test_~splverifierCounter~0 < 4; 304#L294 test_~tmp~1 := test_#t~nondet28;havoc test_#t~nondet28; 336#L302 assume !(0 != test_~tmp~1); 342#L302-1 test_~tmp___0~0 := test_#t~nondet29;havoc test_#t~nondet29; 335#L312 assume !(0 != test_~tmp___0~0); 297#L312-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 311#L322 assume 0 != test_~tmp___2~0; 313#L328-1 assume !(0 != ~pumpRunning~0); 320#L140 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 327#L172 assume !(0 != ~pumpRunning~0); 306#L147 havoc __utac_acc__Specification2_spec__2_#t~ret69, __utac_acc__Specification2_spec__2_#t~ret70, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~1;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~1;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; 315#L89-1 __utac_acc__Specification2_spec__2_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret69;havoc __utac_acc__Specification2_spec__2_#t~ret69; 283#L877 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 285#L877-1 [2019-11-28 21:01:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:01:14,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:01:14,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:01:14,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915190016] [2019-11-28 21:01:14,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:01:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:15,074 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:01:15,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:01:15,075 INFO L82 PathProgramCache]: Analyzing trace with hash 319619009, now seen corresponding path program 1 times [2019-11-28 21:01:15,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:01:15,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614023971] [2019-11-28 21:01:15,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:01:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:15,097 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:01:15,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:01:15,098 INFO L82 PathProgramCache]: Analyzing trace with hash 382006919, now seen corresponding path program 1 times [2019-11-28 21:01:15,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:01:15,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534175214] [2019-11-28 21:01:15,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:01:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:01:15,274 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:01:45,760 WARN L192 SmtUtils]: Spent 30.40 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:01:59,958 WARN L192 SmtUtils]: Spent 14.18 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:02:00,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:02:00 BoogieIcfgContainer [2019-11-28 21:02:00,044 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:02:00,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:02:00,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:02:00,045 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:02:00,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:01:13" (3/4) ... [2019-11-28 21:02:00,048 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:02:00,129 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:02:00,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:02:00,131 INFO L168 Benchmark]: Toolchain (without parser) took 48148.36 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.0 MB). Free memory was 960.4 MB in the beginning and 1.3 GB in the end (delta: -344.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:02:00,132 INFO L168 Benchmark]: CDTParser took 0.26 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 21:02:00,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:00,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.99 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 21:02:00,134 INFO L168 Benchmark]: Boogie Preprocessor took 39.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:02:00,135 INFO L168 Benchmark]: RCFGBuilder took 846.27 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: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:00,136 INFO L168 Benchmark]: BuchiAutomizer took 46360.45 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.1 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -242.5 MB). Peak memory consumption was 387.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:00,136 INFO L168 Benchmark]: Witness Printer took 84.73 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:02:00,143 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 738.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.99 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 39.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 846.27 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: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 46360.45 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.1 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -242.5 MB). Peak memory consumption was 387.7 MB. Max. memory is 11.5 GB. * Witness Printer took 84.73 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 45.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 60 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 96 SDtfs, 361 SDslu, 539 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 292]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2220} State at position 1 is {NULL=2242, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=2239, NULL=2245, NULL=0, NULL=2220, NULL=2229, NULL=0, NULL=0, NULL=2222, retValue_acc=0, NULL=2227, NULL=2235, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e49501c=0, NULL=0, tmp___1=0, NULL=2223, cleanupTimeShifts=4, tmp=0, NULL=2244, NULL=2233, NULL=2226, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@593ae404=0, NULL=0, NULL=2231, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=2232, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33c44a7d=0, NULL=2221, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25737249=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@170143e3=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fd76144=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c6db9c4=57, NULL=2230, NULL=2241, tmp___2=57, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=2240, tmp=0, head=0, NULL=2224, NULL=2237, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c4816d2=0, NULL=2228, NULL=0, NULL=2234, NULL=2236, NULL=2238, NULL=2243, NULL=2225, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L565] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int cleanupTimeShifts = 4; [L860] int methAndRunningLastTime ; [L837] int retValue_acc ; [L838] int tmp ; [L378] int retValue_acc ; [L381] retValue_acc = 1 [L382] return (retValue_acc); [L844] tmp = valid_product() [L846] COND TRUE \read(tmp) [L865] methAndRunningLastTime = 0 [L283] int splverifierCounter ; [L284] int tmp ; [L285] int tmp___0 ; [L286] int tmp___1 ; [L287] int tmp___2 ; [L290] splverifierCounter = 0 Loop: [L292] COND TRUE 1 [L294] COND TRUE splverifierCounter < 4 [L300] tmp = __VERIFIER_nondet_int() [L302] COND FALSE !(\read(tmp)) [L310] tmp___0 = __VERIFIER_nondet_int() [L312] COND FALSE !(\read(tmp___0)) [L320] tmp___2 = __VERIFIER_nondet_int() [L322] COND TRUE \read(tmp___2) [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L169] int tmp ; [L172] COND FALSE !(\read(pumpRunning)) [L870] int tmp ; [L871] int tmp___0 ; [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L875] tmp = isMethaneLevelCritical() [L877] COND FALSE !(\read(tmp)) [L893] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...