./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 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_spec5_product64.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 d5d7e7efc35ba4bdb3849277724b5f801bec138c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-f6fb2bb [2019-11-19 20:05:29,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:05:29,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:05:29,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:05:29,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:05:29,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:05:29,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:05:29,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:05:29,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:05:29,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:05:29,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:05:29,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:05:29,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:05:29,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:05:29,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:05:29,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:05:29,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:05:29,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:05:29,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:05:29,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:05:29,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:05:29,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:05:29,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:05:29,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:05:29,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:05:29,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:05:29,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:05:29,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:05:29,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:05:29,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:05:29,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:05:29,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:05:29,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:05:29,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:05:29,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:05:29,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:05:29,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:05:29,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:05:29,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:05:29,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:05:29,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:05:29,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:05:29,748 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:05:29,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:05:29,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:05:29,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:05:29,753 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:05:29,753 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:05:29,756 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:05:29,756 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:05:29,756 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:05:29,757 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:05:29,757 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:05:29,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:05:29,758 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:05:29,758 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:05:29,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:05:29,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:05:29,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:05:29,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:05:29,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:05:29,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:05:29,761 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:05:29,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:05:29,762 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:05:29,762 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:05:29,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:05:29,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:05:29,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:05:29,763 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:05:29,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:05:29,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:05:29,765 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:05:29,767 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:05:29,768 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 -> d5d7e7efc35ba4bdb3849277724b5f801bec138c [2019-11-19 20:05:30,107 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:05:30,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:05:30,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:05:30,131 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:05:30,131 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:05:30,132 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2019-11-19 20:05:30,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d36da35e/fcb98793ceae46a899109ad0107518b7/FLAG39c062c30 [2019-11-19 20:05:30,725 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:05:30,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2019-11-19 20:05:30,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d36da35e/fcb98793ceae46a899109ad0107518b7/FLAG39c062c30 [2019-11-19 20:05:31,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d36da35e/fcb98793ceae46a899109ad0107518b7 [2019-11-19 20:05:31,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:05:31,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:05:31,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:05:31,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:05:31,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:05:31,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191da8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31, skipping insertion in model container [2019-11-19 20:05:31,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,082 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:05:31,147 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:05:31,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:05:31,666 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:05:31,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:05:31,815 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:05:31,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31 WrapperNode [2019-11-19 20:05:31,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:05:31,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:05:31,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:05:31,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:05:31,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:05:31,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:05:31,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:05:31,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:05:31,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:31,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (1/1) ... [2019-11-19 20:05:32,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:05:32,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:05:32,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:05:32,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:05:32,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (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 [2019-11-19 20:05:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:05:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 20:05:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:05:32,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:05:33,372 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:05:33,372 INFO L285 CfgBuilder]: Removed 368 assume(true) statements. [2019-11-19 20:05:33,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:33 BoogieIcfgContainer [2019-11-19 20:05:33,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:05:33,375 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:05:33,375 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:05:33,379 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:05:33,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:33,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:05:31" (1/3) ... [2019-11-19 20:05:33,381 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e071a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:05:33, skipping insertion in model container [2019-11-19 20:05:33,382 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:33,382 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:31" (2/3) ... [2019-11-19 20:05:33,382 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e071a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:05:33, skipping insertion in model container [2019-11-19 20:05:33,382 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:05:33,383 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:33" (3/3) ... [2019-11-19 20:05:33,384 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2019-11-19 20:05:33,442 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:05:33,442 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:05:33,442 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:05:33,443 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:05:33,443 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:05:33,443 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:05:33,443 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:05:33,444 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:05:33,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-11-19 20:05:33,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-11-19 20:05:33,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:33,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:33,519 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:33,519 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:33,519 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:05:33,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states. [2019-11-19 20:05:33,535 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 153 [2019-11-19 20:05:33,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:33,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:33,539 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:33,541 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:33,554 INFO L794 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~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(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 3#L-1true havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 32#L675true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 63#L683true main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 222#L630true assume 0 != main_~tmp~8; 195#L603true ~switchedOnBeforeTS~0 := 0; 110#L49true havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 7#L70-1true [2019-11-19 20:05:33,555 INFO L796 eck$LassoCheckResult]: Loop: 7#L70-1true assume !false; 4#L109true assume test_~splverifierCounter~0 < 4; 102#L110true test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 228#L118true assume !(0 != test_~tmp~1); 226#L118-1true test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 145#L128true assume !(0 != test_~tmp___0~1); 143#L128-1true test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 65#L138true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 185#L146-1true havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 44#L339true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 9#L59true assume !(0 != ~pumpRunning~0); 58#L185true assume !(0 != ~systemActive~0); 129#L192true havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 5#L516true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 10#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 7#L70-1true [2019-11-19 20:05:33,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:33,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-19 20:05:33,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:33,575 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690792488] [2019-11-19 20:05:33,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:34,544 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:34,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:34,546 INFO L82 PathProgramCache]: Analyzing trace with hash 681690678, now seen corresponding path program 1 times [2019-11-19 20:05:34,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:34,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40877662] [2019-11-19 20:05:34,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:34,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:34,627 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40877662] [2019-11-19 20:05:34,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:34,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:05:34,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319241663] [2019-11-19 20:05:34,638 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:05:34,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:34,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:05:34,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:05:34,659 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 3 states. [2019-11-19 20:05:34,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:34,754 INFO L93 Difference]: Finished difference Result 459 states and 671 transitions. [2019-11-19 20:05:34,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:05:34,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 459 states and 671 transitions. [2019-11-19 20:05:34,776 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 302 [2019-11-19 20:05:34,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 459 states to 445 states and 656 transitions. [2019-11-19 20:05:34,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 445 [2019-11-19 20:05:34,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 445 [2019-11-19 20:05:34,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 445 states and 656 transitions. [2019-11-19 20:05:34,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:34,820 INFO L688 BuchiCegarLoop]: Abstraction has 445 states and 656 transitions. [2019-11-19 20:05:34,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states and 656 transitions. [2019-11-19 20:05:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 443. [2019-11-19 20:05:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-11-19 20:05:34,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 653 transitions. [2019-11-19 20:05:34,936 INFO L711 BuchiCegarLoop]: Abstraction has 443 states and 653 transitions. [2019-11-19 20:05:34,937 INFO L591 BuchiCegarLoop]: Abstraction has 443 states and 653 transitions. [2019-11-19 20:05:34,937 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:05:34,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 443 states and 653 transitions. [2019-11-19 20:05:34,943 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 300 [2019-11-19 20:05:34,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:34,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:34,946 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:34,946 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:34,947 INFO L794 eck$LassoCheckResult]: Stem: 842#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~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(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 701#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 702#L675 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 747#L683 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 793#L630 assume 0 != main_~tmp~8; 956#L603 ~switchedOnBeforeTS~0 := 0; 863#L49 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 711#L70-1 [2019-11-19 20:05:34,947 INFO L796 eck$LassoCheckResult]: Loop: 711#L70-1 assume !false; 703#L109 assume test_~splverifierCounter~0 < 4; 704#L110 test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 854#L118 assume !(0 != test_~tmp~1); 975#L118-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 976#L128 assume !(0 != test_~tmp___0~1); 903#L128-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 794#L138 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 796#L146-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 766#L339 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 714#L59 assume !(0 != ~pumpRunning~0); 715#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 786#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 892#L243-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 927#L217-3 assume !(0 == ~pumpRunning~0); 884#L192 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 706#L516 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 707#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 711#L70-1 [2019-11-19 20:05:34,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:34,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-19 20:05:34,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:34,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54787683] [2019-11-19 20:05:34,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:35,416 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:35,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:35,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1785171479, now seen corresponding path program 1 times [2019-11-19 20:05:35,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:35,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979180853] [2019-11-19 20:05:35,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:35,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979180853] [2019-11-19 20:05:35,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:35,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:05:35,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493712217] [2019-11-19 20:05:35,446 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:05:35,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:35,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:05:35,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:05:35,447 INFO L87 Difference]: Start difference. First operand 443 states and 653 transitions. cyclomatic complexity: 213 Second operand 3 states. [2019-11-19 20:05:35,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:35,620 INFO L93 Difference]: Finished difference Result 452 states and 631 transitions. [2019-11-19 20:05:35,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:05:35,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 452 states and 631 transitions. [2019-11-19 20:05:35,626 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2019-11-19 20:05:35,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 452 states to 452 states and 631 transitions. [2019-11-19 20:05:35,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 452 [2019-11-19 20:05:35,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 452 [2019-11-19 20:05:35,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 452 states and 631 transitions. [2019-11-19 20:05:35,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:35,634 INFO L688 BuchiCegarLoop]: Abstraction has 452 states and 631 transitions. [2019-11-19 20:05:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states and 631 transitions. [2019-11-19 20:05:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2019-11-19 20:05:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-11-19 20:05:35,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 631 transitions. [2019-11-19 20:05:35,647 INFO L711 BuchiCegarLoop]: Abstraction has 452 states and 631 transitions. [2019-11-19 20:05:35,647 INFO L591 BuchiCegarLoop]: Abstraction has 452 states and 631 transitions. [2019-11-19 20:05:35,647 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:05:35,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 452 states and 631 transitions. [2019-11-19 20:05:35,651 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 315 [2019-11-19 20:05:35,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:35,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:35,653 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:35,653 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:35,653 INFO L794 eck$LassoCheckResult]: Stem: 1787#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~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(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 1602#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 1603#L675 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1708#L683 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 1747#L630 assume 0 != main_~tmp~8; 1758#L603 ~switchedOnBeforeTS~0 := 0; 1759#L49 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1799#L70-1 [2019-11-19 20:05:35,654 INFO L796 eck$LassoCheckResult]: Loop: 1799#L70-1 assume !false; 1906#L109 assume test_~splverifierCounter~0 < 4; 1905#L110 test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 1904#L118 assume !(0 != test_~tmp~1); 1902#L118-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 1901#L128 assume !(0 != test_~tmp___0~1); 1634#L128-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 1635#L138 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1744#L146-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1721#L339 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 1722#L59 assume !(0 != ~pumpRunning~0); 1855#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1894#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 1892#L243-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1808#L217-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1636#L524-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1637#L529-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 1706#L388-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~2 := 0; 1738#L388-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1727#L394-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1661#L221-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 1662#L192 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1911#L516 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 1907#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 1799#L70-1 [2019-11-19 20:05:35,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:35,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-19 20:05:35,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:35,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262657698] [2019-11-19 20:05:35,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:35,937 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:35,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:35,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1255643605, now seen corresponding path program 1 times [2019-11-19 20:05:35,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:35,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835622019] [2019-11-19 20:05:35,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:05:36,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:05:36,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835622019] [2019-11-19 20:05:36,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:05:36,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:05:36,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303449309] [2019-11-19 20:05:36,005 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:05:36,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:05:36,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 20:05:36,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 20:05:36,006 INFO L87 Difference]: Start difference. First operand 452 states and 631 transitions. cyclomatic complexity: 182 Second operand 5 states. [2019-11-19 20:05:36,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:05:36,462 INFO L93 Difference]: Finished difference Result 2147 states and 3011 transitions. [2019-11-19 20:05:36,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 20:05:36,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2147 states and 3011 transitions. [2019-11-19 20:05:36,490 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 1478 [2019-11-19 20:05:36,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2147 states to 2147 states and 3011 transitions. [2019-11-19 20:05:36,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2147 [2019-11-19 20:05:36,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2147 [2019-11-19 20:05:36,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2147 states and 3011 transitions. [2019-11-19 20:05:36,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:05:36,520 INFO L688 BuchiCegarLoop]: Abstraction has 2147 states and 3011 transitions. [2019-11-19 20:05:36,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states and 3011 transitions. [2019-11-19 20:05:36,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 891. [2019-11-19 20:05:36,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2019-11-19 20:05:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1231 transitions. [2019-11-19 20:05:36,548 INFO L711 BuchiCegarLoop]: Abstraction has 891 states and 1231 transitions. [2019-11-19 20:05:36,548 INFO L591 BuchiCegarLoop]: Abstraction has 891 states and 1231 transitions. [2019-11-19 20:05:36,548 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 20:05:36,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 891 states and 1231 transitions. [2019-11-19 20:05:36,555 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 626 [2019-11-19 20:05:36,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:05:36,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:05:36,557 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:36,557 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:05:36,557 INFO L794 eck$LassoCheckResult]: Stem: 4407#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(13);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(77, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(101, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(116, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(104, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string35.base, #t~string35.offset, 1);call write~init~int(82, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(73, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(84, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 4 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(75, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 2 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 1 + #t~string39.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~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(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25); 4220#L-1 havoc main_#res;havoc main_#t~ret40, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 4221#L675 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 4334#L683 main_#t~ret40 := valid_product_#res;main_~tmp~8 := main_#t~ret40;havoc main_#t~ret40; 4368#L630 assume 0 != main_~tmp~8; 4378#L603 ~switchedOnBeforeTS~0 := 0; 4379#L49 havoc test_#t~nondet3, test_#t~nondet4, test_#t~nondet5, test_#t~nondet6, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4423#L70-1 [2019-11-19 20:05:36,558 INFO L796 eck$LassoCheckResult]: Loop: 4423#L70-1 assume !false; 4716#L109 assume test_~splverifierCounter~0 < 4; 4715#L110 test_~tmp~1 := test_#t~nondet3;havoc test_#t~nondet3; 4714#L118 assume !(0 != test_~tmp~1); 4687#L118-1 test_~tmp___0~1 := test_#t~nondet4;havoc test_#t~nondet4; 4676#L128 assume !(0 != test_~tmp___0~1); 4672#L128-1 test_~tmp___2~0 := test_#t~nondet5;havoc test_#t~nondet5; 4668#L138 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 4364#L146-1 havoc __utac_acc__Specification5_spec__2_#t~ret0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 4345#L339 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 4240#L59 assume !(0 != ~pumpRunning~0); 4241#L185 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 4357#L269 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 4669#L243-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 4646#L217-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 4643#L524-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 4621#L529-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 4619#L388-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~2 := 0; 4617#L388-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 4616#L394-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 4615#L221-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 4294#L192 havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 4439#L516 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 4242#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 4243#L339-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 4349#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 4423#L70-1 [2019-11-19 20:05:36,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:36,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-19 20:05:36,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:36,559 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011391097] [2019-11-19 20:05:36,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:36,972 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:36,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:36,974 INFO L82 PathProgramCache]: Analyzing trace with hash -212312784, now seen corresponding path program 1 times [2019-11-19 20:05:36,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:36,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627627762] [2019-11-19 20:05:36,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:36,998 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:36,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:05:36,999 INFO L82 PathProgramCache]: Analyzing trace with hash 2116442870, now seen corresponding path program 1 times [2019-11-19 20:05:36,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:05:37,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449241889] [2019-11-19 20:05:37,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:05:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:05:37,335 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:05:37,531 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-19 20:06:04,999 WARN L191 SmtUtils]: Spent 27.38 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-11-19 20:06:18,273 WARN L191 SmtUtils]: Spent 13.27 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-19 20:06:18,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:06:18 BoogieIcfgContainer [2019-11-19 20:06:18,355 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:06:18,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:06:18,356 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:06:18,356 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:06:18,357 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:33" (3/4) ... [2019-11-19 20:06:18,360 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 20:06:18,442 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:06:18,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:06:18,445 INFO L168 Benchmark]: Toolchain (without parser) took 47381.20 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 340.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). Peak memory consumption was 186.3 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:18,446 INFO L168 Benchmark]: CDTParser took 0.20 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. [2019-11-19 20:06:18,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:18,450 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.49 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:18,451 INFO L168 Benchmark]: Boogie Preprocessor took 99.47 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. [2019-11-19 20:06:18,451 INFO L168 Benchmark]: RCFGBuilder took 1363.11 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: 92.5 MB). Peak memory consumption was 92.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:18,452 INFO L168 Benchmark]: BuchiAutomizer took 44980.18 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 198.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -108.9 MB). Peak memory consumption was 357.4 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:18,456 INFO L168 Benchmark]: Witness Printer took 87.06 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. [2019-11-19 20:06:18,462 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 751.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.49 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 99.47 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 1363.11 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: 92.5 MB). Peak memory consumption was 92.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44980.18 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 198.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -108.9 MB). Peak memory consumption was 357.4 MB. Max. memory is 11.5 GB. * Witness Printer took 87.06 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 891 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 43.7s. Construction of modules took 0.4s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1258 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 891 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1081 SDtfs, 1812 SDslu, 1730 SDs, 0 SdLazy, 245 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 108]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=15396} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=15396, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ee34068=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a744eaa=53, NULL=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75eedcb6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ff8af77=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c38811c=0, NULL=0, NULL=15392, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b34509f=0, retValue_acc=1, NULL=15386, retValue_acc=0, tmp___1=0, NULL=-11, NULL=7174, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74f47ffe=0, NULL=15384, NULL=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72f986aa=0, NULL=15381, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=-7, NULL=0, NULL=0, NULL=0, tmp=1, \result=1, NULL=15395, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@789aad26=0, tmp___0=0, tmp=1, retValue_acc=1, NULL=-4, head=0, tmp=0, NULL=15393, NULL=0, NULL=0, NULL=0, NULL=15391, NULL=-9, tmp=0, NULL=-10, NULL=0, NULL=0, NULL=15394, retValue_acc=0, NULL=-8, NULL=-14, tmp___0=0, NULL=0, NULL=0, tmp=1, switchedOnBeforeTS=0, NULL=15382, NULL=15383, tmp=0, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=15385, \result=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57cb356f=0, tmp___0=0, \result=0, NULL=-6, NULL=0, NULL=0, NULL=6875, NULL=0, tmp___2=53, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b9d80c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@640ad499=0, NULL=15390, retValue_acc=0, NULL=-13, NULL=0, NULL=15388} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L43] int switchedOnBeforeTS ; [L175] int pumpRunning = 0; [L176] int systemActive = 1; [L441] int waterLevel = 1; [L442] int methaneLevelCritical = 0; [L544] int cleanupTimeShifts = 4; [L857] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L621] int retValue_acc ; [L622] int tmp ; [L679] int retValue_acc ; [L682] retValue_acc = 1 [L683] return (retValue_acc); [L628] tmp = valid_product() [L630] COND TRUE \read(tmp) [L48] switchedOnBeforeTS = 0 [L99] int splverifierCounter ; [L100] int tmp ; [L101] int tmp___0 ; [L102] int tmp___1 ; [L103] int tmp___2 ; [L106] splverifierCounter = 0 Loop: [L108] COND TRUE 1 [L110] COND TRUE splverifierCounter < 4 [L116] tmp = __VERIFIER_nondet_int() [L118] COND FALSE !(\read(tmp)) [L126] tmp___0 = __VERIFIER_nondet_int() [L128] COND FALSE !(\read(tmp___0)) [L136] tmp___2 = __VERIFIER_nondet_int() [L138] COND TRUE \read(tmp___2) [L436] systemActive = 1 [L335] int retValue_acc ; [L338] retValue_acc = pumpRunning [L339] return (retValue_acc); [L57] switchedOnBeforeTS = isPumpRunning() [L185] COND FALSE !(\read(pumpRunning)) [L192] COND TRUE \read(systemActive) [L266] int tmp ; [L269] COND FALSE !(\read(pumpRunning)) [L240] int tmp ; [L243] COND FALSE !(\read(pumpRunning)) [L214] int tmp ; [L217] COND TRUE ! pumpRunning [L380] int retValue_acc ; [L381] int tmp ; [L382] int tmp___0 ; [L521] int retValue_acc ; [L524] COND TRUE waterLevel < 2 [L525] retValue_acc = 1 [L526] return (retValue_acc); [L386] tmp = isHighWaterSensorDry() [L388] COND TRUE \read(tmp) [L389] tmp___0 = 0 [L393] retValue_acc = tmp___0 [L394] return (retValue_acc); [L219] tmp = isHighWaterLevel() [L221] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L512] int retValue_acc ; [L515] retValue_acc = waterLevel [L516] return (retValue_acc); [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L335] int retValue_acc ; [L338] retValue_acc = pumpRunning [L339] return (retValue_acc); [L72] tmp___0 = isPumpRunning() [L74] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...