./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product33.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_spec4_product33.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 2bf5cdbd1397f8c2609b4d66a963cb35955afadc .................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:09:50,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:09:50,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:09:50,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:09:50,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:09:50,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:09:50,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:09:50,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:09:50,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:09:50,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:09:50,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:09:50,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:09:50,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:09:50,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:09:50,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:09:50,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:09:50,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:09:50,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:09:50,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:09:50,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:09:50,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:09:50,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:09:50,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:09:50,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:09:50,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:09:50,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:09:50,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:09:50,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:09:50,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:09:50,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:09:50,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:09:50,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:09:50,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:09:50,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:09:50,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:09:50,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:09:50,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:09:50,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:09:50,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:09:50,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:09:50,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:09:50,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:09:50,774 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:09:50,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:09:50,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:09:50,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:09:50,776 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:09:50,776 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:09:50,776 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:09:50,777 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:09:50,777 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:09:50,777 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:09:50,777 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:09:50,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:09:50,778 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:09:50,778 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:09:50,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:09:50,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:09:50,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:09:50,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:09:50,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:09:50,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:09:50,779 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:09:50,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:09:50,780 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:09:50,780 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:09:50,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:09:50,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:09:50,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:09:50,782 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:09:50,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:09:50,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:09:50,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:09:50,783 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:09:50,784 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:09:50,784 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 -> 2bf5cdbd1397f8c2609b4d66a963cb35955afadc [2019-11-28 21:09:51,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:09:51,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:09:51,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:09:51,103 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:09:51,103 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:09:51,104 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-11-28 21:09:51,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc6fcc31/433ea46ee9dc49e98b1f6e1b5611ee1c/FLAGaa4339385 [2019-11-28 21:09:51,716 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:09:51,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2019-11-28 21:09:51,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc6fcc31/433ea46ee9dc49e98b1f6e1b5611ee1c/FLAGaa4339385 [2019-11-28 21:09:52,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc6fcc31/433ea46ee9dc49e98b1f6e1b5611ee1c [2019-11-28 21:09:52,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:09:52,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:09:52,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:09:52,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:09:52,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:09:52,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550f4497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52, skipping insertion in model container [2019-11-28 21:09:52,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:09:52,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:09:52,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:09:52,495 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:09:52,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:09:52,652 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:09:52,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52 WrapperNode [2019-11-28 21:09:52,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:09:52,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:09:52,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:09:52,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:09:52,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:09:52,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:09:52,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:09:52,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:09:52,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (1/1) ... [2019-11-28 21:09:52,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:09:52,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:09:52,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:09:52,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:09:52,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (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 21:09:52,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:09:52,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:09:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:09:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:09:53,608 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:09:53,608 INFO L287 CfgBuilder]: Removed 96 assume(true) statements. [2019-11-28 21:09:53,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:09:53 BoogieIcfgContainer [2019-11-28 21:09:53,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:09:53,610 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:09:53,610 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:09:53,614 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:09:53,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:09:53,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:09:52" (1/3) ... [2019-11-28 21:09:53,617 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31c8eec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:09:53, skipping insertion in model container [2019-11-28 21:09:53,617 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:09:53,617 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:09:52" (2/3) ... [2019-11-28 21:09:53,618 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31c8eec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:09:53, skipping insertion in model container [2019-11-28 21:09:53,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:09:53,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:09:53" (3/3) ... [2019-11-28 21:09:53,622 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2019-11-28 21:09:53,678 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:09:53,679 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:09:53,679 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:09:53,679 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:09:53,680 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:09:53,680 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:09:53,680 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:09:53,681 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:09:53,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2019-11-28 21:09:53,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 21:09:53,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:53,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:53,738 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:53,738 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:53,738 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:09:53,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states. [2019-11-28 21:09:53,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 21:09:53,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:53,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:53,746 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:53,747 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:53,753 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 12#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 48#L532true 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; 69#L540true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 71#L496true assume 0 != main_~tmp~3; 45#L469true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 34#L882-1true [2019-11-28 21:09:53,754 INFO L796 eck$LassoCheckResult]: Loop: 34#L882-1true assume !false; 25#L556true assume test_~splverifierCounter~0 < 4; 42#L557true test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 63#L565true assume !(0 != test_~tmp~4); 49#L565-1true test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 46#L575true assume !(0 != test_~tmp___0~0); 28#L575-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 13#L585true assume 0 != test_~tmp___2~0; 61#L591-2true assume !(0 != ~pumpRunning~0); 16#L720true assume !(0 != ~systemActive~0); 8#L727true havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 66#L690true __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 31#L882true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 34#L882-1true [2019-11-28 21:09:53,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:53,762 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:09:53,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:53,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273421100] [2019-11-28 21:09:53,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:54,132 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:54,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:54,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1681529854, now seen corresponding path program 1 times [2019-11-28 21:09:54,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:54,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984574902] [2019-11-28 21:09:54,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:54,154 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:54,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:54,156 INFO L82 PathProgramCache]: Analyzing trace with hash 32749084, now seen corresponding path program 1 times [2019-11-28 21:09:54,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:54,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851215618] [2019-11-28 21:09:54,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:09:54,330 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 21:09:54,331 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851215618] [2019-11-28 21:09:54,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:09:54,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:09:54,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740035220] [2019-11-28 21:09:54,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:09:54,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:09:54,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:09:54,447 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 6 states. [2019-11-28 21:09:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:09:54,623 INFO L93 Difference]: Finished difference Result 75 states and 103 transitions. [2019-11-28 21:09:54,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:09:54,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 103 transitions. [2019-11-28 21:09:54,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:09:54,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 96 transitions. [2019-11-28 21:09:54,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2019-11-28 21:09:54,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2019-11-28 21:09:54,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 96 transitions. [2019-11-28 21:09:54,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:09:54,651 INFO L688 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2019-11-28 21:09:54,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 96 transitions. [2019-11-28 21:09:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-11-28 21:09:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-28 21:09:54,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2019-11-28 21:09:54,708 INFO L711 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2019-11-28 21:09:54,708 INFO L591 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2019-11-28 21:09:54,708 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:09:54,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 96 transitions. [2019-11-28 21:09:54,714 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2019-11-28 21:09:54,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:54,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:54,716 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:54,717 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:54,717 INFO L794 eck$LassoCheckResult]: Stem: 209#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 185#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 186#L532 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; 230#L540 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 235#L496 assume 0 != main_~tmp~3; 225#L469 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 212#L882-1 [2019-11-28 21:09:54,718 INFO L796 eck$LassoCheckResult]: Loop: 212#L882-1 assume !false; 203#L556 assume test_~splverifierCounter~0 < 4; 204#L557 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 223#L565 assume !(0 != test_~tmp~4); 197#L565-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 227#L575 assume !(0 != test_~tmp___0~0); 207#L575-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 187#L585 assume 0 != test_~tmp___2~0; 188#L591-2 assume !(0 != ~pumpRunning~0); 177#L720 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 190#L752 assume !(0 == ~pumpRunning~0); 178#L727 havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 179#L690 __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 211#L882 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 212#L882-1 [2019-11-28 21:09:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:54,719 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:09:54,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:54,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774342392] [2019-11-28 21:09:54,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:54,861 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:54,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:54,862 INFO L82 PathProgramCache]: Analyzing trace with hash -619428453, now seen corresponding path program 1 times [2019-11-28 21:09:54,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:54,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842445114] [2019-11-28 21:09:54,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:09:54,877 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 21:09:54,878 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842445114] [2019-11-28 21:09:54,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:09:54,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:09:54,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495463985] [2019-11-28 21:09:54,879 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:09:54,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:09:54,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:09:54,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:09:54,881 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. cyclomatic complexity: 30 Second operand 3 states. [2019-11-28 21:09:54,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:09:54,953 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2019-11-28 21:09:54,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:09:54,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 147 transitions. [2019-11-28 21:09:54,957 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2019-11-28 21:09:54,959 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 109 states and 147 transitions. [2019-11-28 21:09:54,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 109 [2019-11-28 21:09:54,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2019-11-28 21:09:54,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 147 transitions. [2019-11-28 21:09:54,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:09:54,961 INFO L688 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2019-11-28 21:09:54,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 147 transitions. [2019-11-28 21:09:54,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-11-28 21:09:54,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-28 21:09:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 147 transitions. [2019-11-28 21:09:54,970 INFO L711 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2019-11-28 21:09:54,970 INFO L591 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2019-11-28 21:09:54,970 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:09:54,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 147 transitions. [2019-11-28 21:09:54,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2019-11-28 21:09:54,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:09:54,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:09:54,974 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:09:54,974 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:09:54,974 INFO L794 eck$LassoCheckResult]: Stem: 395#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(77, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(101, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(116, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(104, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string46.base, #t~string46.offset, 1);call write~init~int(82, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(73, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(84, #t~string46.base, 3 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 4 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(75, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 1 + #t~string50.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 369#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 370#L532 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; 419#L540 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 428#L496 assume 0 != main_~tmp~3; 413#L469 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 414#L882-1 [2019-11-28 21:09:54,975 INFO L796 eck$LassoCheckResult]: Loop: 414#L882-1 assume !false; 388#L556 assume test_~splverifierCounter~0 < 4; 389#L557 test_~tmp~4 := test_#t~nondet37;havoc test_#t~nondet37; 447#L565 assume !(0 != test_~tmp~4); 442#L565-1 test_~tmp___0~0 := test_#t~nondet38;havoc test_#t~nondet38; 439#L575 assume !(0 != test_~tmp___0~0); 436#L575-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 371#L585 assume 0 != test_~tmp___2~0; 372#L591-2 assume !(0 != ~pumpRunning~0); 374#L720 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret51, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 375#L752 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret69, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 376#L698 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 377#L703 isHighWaterLevel_#t~ret69 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret69;havoc isHighWaterLevel_#t~ret69; 417#L854 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 418#L854-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 400#L860 processEnvironment_#t~ret51 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret51;havoc processEnvironment_#t~ret51; 401#L756 assume !(0 != processEnvironment_~tmp~5); 423#L727 havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 458#L690 __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 456#L882 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 414#L882-1 [2019-11-28 21:09:54,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:54,975 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:09:54,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:54,976 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413656987] [2019-11-28 21:09:54,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:55,059 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:55,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:55,060 INFO L82 PathProgramCache]: Analyzing trace with hash -22033881, now seen corresponding path program 1 times [2019-11-28 21:09:55,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:55,060 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970248485] [2019-11-28 21:09:55,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:55,074 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:55,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:09:55,075 INFO L82 PathProgramCache]: Analyzing trace with hash -7321907, now seen corresponding path program 1 times [2019-11-28 21:09:55,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:09:55,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968699937] [2019-11-28 21:09:55,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:09:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:09:55,156 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:09:55,300 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-28 21:10:23,836 WARN L192 SmtUtils]: Spent 28.46 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:10:37,998 WARN L192 SmtUtils]: Spent 14.16 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:10:38,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:10:38 BoogieIcfgContainer [2019-11-28 21:10:38,086 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:10:38,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:10:38,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:10:38,087 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:10:38,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:09:53" (3/4) ... [2019-11-28 21:10:38,090 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:10:38,166 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:10:38,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:10:38,169 INFO L168 Benchmark]: Toolchain (without parser) took 46151.64 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 295.7 MB). Free memory was 961.7 MB in the beginning and 1.3 GB in the end (delta: -288.6 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:38,173 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:10:38,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:38,179 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.41 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:38,181 INFO L168 Benchmark]: Boogie Preprocessor took 40.58 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 21:10:38,183 INFO L168 Benchmark]: RCFGBuilder took 836.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:38,183 INFO L168 Benchmark]: BuchiAutomizer took 44475.56 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -214.2 MB). Peak memory consumption was 383.4 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:38,184 INFO L168 Benchmark]: Witness Printer took 79.87 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: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:10:38,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 635.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.41 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.58 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 836.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44475.56 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -214.2 MB). Peak memory consumption was 383.4 MB. Max. memory is 11.5 GB. * Witness Printer took 79.87 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: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 43.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 209 SDtfs, 378 SDslu, 50 SDs, 0 SdLazy, 29 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 555]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7623} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61f6f631=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=7623, NULL=8647, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dd3fff9=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1accf4a7=0, NULL=8650, NULL=8643, methaneLevelCritical=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@726133ef=0, tmp=0, NULL=0, NULL=0, NULL=8631, tmp___1=0, NULL=8630, NULL=8632, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b02b0de=0, NULL=8634, NULL=8653, cleanupTimeShifts=4, NULL=8637, NULL=8639, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e0c9cc5=60, NULL=8642, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4411815=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@866e2e6=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3541babd=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=8651, \result=0, NULL=8644, NULL=0, tmp___0=0, NULL=0, NULL=8652, NULL=0, NULL=0, \result=1, NULL=8646, head=0, pumpRunning=0, retValue_acc=1, \result=0, NULL=8648, tmp=1, NULL=0, NULL=8638, NULL=0, retValue_acc=1, \result=1, NULL=8641, NULL=8633, retValue_acc=0, tmp=1, retValue_acc=1, tmp___2=60, NULL=8635, tmp=1, splverifierCounter=0, head=0, NULL=0, tmp=0, NULL=8640, NULL=8649, NULL=0, NULL=8654, NULL=0, NULL=0, NULL=8636, NULL=8645, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L487] int retValue_acc ; [L488] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 Loop: [L555] COND TRUE 1 [L557] COND TRUE splverifierCounter < 4 [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) [L720] COND FALSE !(\read(pumpRunning)) [L727] COND TRUE \read(systemActive) [L749] int tmp ; [L752] COND TRUE ! pumpRunning [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; [L695] int retValue_acc ; [L698] COND TRUE waterLevel < 2 [L699] retValue_acc = 1 [L700] return (retValue_acc); [L852] tmp = isHighWaterSensorDry() [L854] COND TRUE \read(tmp) [L855] tmp___0 = 0 [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); [L754] tmp = isHighWaterLevel() [L756] COND FALSE !(\read(tmp)) [L875] int tmp ; [L876] int tmp___0 ; [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...