./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab 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_product61.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 8b70f1184a0eb3743d86be3e0236101e1312b9f0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-30f4e4a [2019-11-28 03:42:40,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:42:40,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:42:40,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:42:40,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:42:40,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:42:40,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:42:40,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:42:40,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:42:40,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:42:40,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:42:40,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:42:40,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:42:40,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:42:40,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:42:40,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:42:40,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:42:40,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:42:40,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:42:40,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:42:40,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:42:40,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:42:40,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:42:40,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:42:40,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:42:40,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:42:40,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:42:40,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:42:40,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:42:40,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:42:40,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:42:40,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:42:40,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:42:40,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:42:40,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:42:40,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:42:40,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:42:40,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:42:40,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:42:40,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:42:40,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:42:40,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:42:40,670 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:42:40,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:42:40,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:42:40,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:42:40,674 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:42:40,675 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:42:40,675 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:42:40,675 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:42:40,675 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:42:40,676 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:42:40,677 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:42:40,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:42:40,677 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:42:40,678 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:42:40,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:42:40,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:42:40,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:42:40,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:42:40,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:42:40,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:42:40,680 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:42:40,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:42:40,680 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:42:40,680 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:42:40,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:42:40,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:42:40,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:42:40,681 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:42:40,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:42:40,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:42:40,682 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:42:40,684 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:42:40,685 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 -> 8b70f1184a0eb3743d86be3e0236101e1312b9f0 [2019-11-28 03:42:40,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:42:40,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:42:41,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:42:41,004 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:42:41,005 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:42:41,006 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2019-11-28 03:42:41,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5307845d/7fb1990a8b1f4308ab85be39fbdf7e84/FLAG75ccabdc8 [2019-11-28 03:42:41,685 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:42:41,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product61.cil.c [2019-11-28 03:42:41,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5307845d/7fb1990a8b1f4308ab85be39fbdf7e84/FLAG75ccabdc8 [2019-11-28 03:42:41,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5307845d/7fb1990a8b1f4308ab85be39fbdf7e84 [2019-11-28 03:42:41,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:42:41,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:42:41,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:42:41,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:42:41,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:42:41,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:41" (1/1) ... [2019-11-28 03:42:41,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ebb17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:41, skipping insertion in model container [2019-11-28 03:42:41,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:41" (1/1) ... [2019-11-28 03:42:42,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:42:42,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:42:42,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:42:42,504 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:42:42,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:42:42,655 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:42:42,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42 WrapperNode [2019-11-28 03:42:42,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:42:42,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:42:42,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:42:42,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:42:42,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (1/1) ... [2019-11-28 03:42:42,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (1/1) ... [2019-11-28 03:42:42,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:42:42,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:42:42,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:42:42,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:42:42,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (1/1) ... [2019-11-28 03:42:42,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (1/1) ... [2019-11-28 03:42:42,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (1/1) ... [2019-11-28 03:42:42,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (1/1) ... [2019-11-28 03:42:42,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (1/1) ... [2019-11-28 03:42:42,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (1/1) ... [2019-11-28 03:42:42,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (1/1) ... [2019-11-28 03:42:42,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:42:42,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:42:42,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:42:42,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:42:42,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (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 03:42:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:42:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:42:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:42:42,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:42:44,103 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:42:44,103 INFO L297 CfgBuilder]: Removed 362 assume(true) statements. [2019-11-28 03:42:44,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:44 BoogieIcfgContainer [2019-11-28 03:42:44,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:42:44,107 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:42:44,107 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:42:44,111 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:42:44,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:42:44,113 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:42:41" (1/3) ... [2019-11-28 03:42:44,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b1bb596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:42:44, skipping insertion in model container [2019-11-28 03:42:44,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:42:44,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:42" (2/3) ... [2019-11-28 03:42:44,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b1bb596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:42:44, skipping insertion in model container [2019-11-28 03:42:44,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:42:44,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:44" (3/3) ... [2019-11-28 03:42:44,121 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product61.cil.c [2019-11-28 03:42:44,174 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:42:44,175 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:42:44,175 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:42:44,175 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:42:44,176 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:42:44,176 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:42:44,176 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:42:44,176 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:42:44,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2019-11-28 03:42:44,238 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-28 03:42:44,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:44,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:44,251 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:44,252 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:44,252 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:42:44,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states. [2019-11-28 03:42:44,271 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-28 03:42:44,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:44,272 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:44,273 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:44,274 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:44,279 INFO L794 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 3#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 109#L908true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 215#L916true main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 82#L1013true assume 0 != main_~tmp~11; 14#L989true ~switchedOnBeforeTS~0 := 0; 38#L840true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 224#L861-1true [2019-11-28 03:42:44,280 INFO L796 eck$LassoCheckResult]: Loop: 224#L861-1true assume !false; 96#L55true assume test_~splverifierCounter~0 < 4; 164#L56true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 35#L64true assume !(0 != test_~tmp~0); 33#L64-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 217#L74true assume !(0 != test_~tmp___0~0); 203#L74-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 129#L84true assume 0 != test_~tmp___2~0; 233#L90-2true havoc __utac_acc__Specification5_spec__2_#t~ret72;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; 27#L284true __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 222#L850true assume !(0 != ~pumpRunning~0); 43#L130true assume !(0 != ~systemActive~0); 120#L137true havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 4#L439true __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 220#L861true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 224#L861-1true [2019-11-28 03:42:44,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:44,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:42:44,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:44,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535206697] [2019-11-28 03:42:44,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:44,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:44,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:44,754 INFO L82 PathProgramCache]: Analyzing trace with hash 100753900, now seen corresponding path program 1 times [2019-11-28 03:42:44,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:44,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703267967] [2019-11-28 03:42:44,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:44,783 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:44,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:44,785 INFO L82 PathProgramCache]: Analyzing trace with hash 2034779110, now seen corresponding path program 1 times [2019-11-28 03:42:44,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:44,786 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176928662] [2019-11-28 03:42:44,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:42:44,955 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 03:42:44,956 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176928662] [2019-11-28 03:42:44,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:42:44,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:42:44,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349811166] [2019-11-28 03:42:45,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:42:45,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 03:42:45,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 03:42:45,096 INFO L87 Difference]: Start difference. First operand 231 states. Second operand 6 states. [2019-11-28 03:42:45,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:42:45,295 INFO L93 Difference]: Finished difference Result 231 states and 334 transitions. [2019-11-28 03:42:45,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 03:42:45,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 334 transitions. [2019-11-28 03:42:45,304 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-28 03:42:45,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 224 states and 327 transitions. [2019-11-28 03:42:45,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 224 [2019-11-28 03:42:45,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2019-11-28 03:42:45,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 327 transitions. [2019-11-28 03:42:45,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:42:45,319 INFO L688 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-28 03:42:45,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 327 transitions. [2019-11-28 03:42:45,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2019-11-28 03:42:45,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-11-28 03:42:45,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 327 transitions. [2019-11-28 03:42:45,364 INFO L711 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-28 03:42:45,365 INFO L591 BuchiCegarLoop]: Abstraction has 224 states and 327 transitions. [2019-11-28 03:42:45,365 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:42:45,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states and 327 transitions. [2019-11-28 03:42:45,370 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2019-11-28 03:42:45,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:45,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:45,375 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:45,375 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:45,376 INFO L794 eck$LassoCheckResult]: Stem: 611#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 480#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 481#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 636#L916 main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 604#L1013 assume 0 != main_~tmp~11; 497#L989 ~switchedOnBeforeTS~0 := 0; 498#L840 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 537#L861-1 [2019-11-28 03:42:45,377 INFO L796 eck$LassoCheckResult]: Loop: 537#L861-1 assume !false; 621#L55 assume test_~splverifierCounter~0 < 4; 622#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 531#L64 assume !(0 != test_~tmp~0); 527#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 528#L74 assume !(0 != test_~tmp___0~0); 700#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 654#L84 assume 0 != test_~tmp___2~0; 656#L90-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;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; 520#L284 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 521#L850 assume !(0 != ~pumpRunning~0); 544#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 545#L214 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 650#L188-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 683#L162-3 assume !(0 == ~pumpRunning~0); 509#L137 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 482#L439 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 483#L861 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 537#L861-1 [2019-11-28 03:42:45,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:45,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:42:45,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:45,378 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433715837] [2019-11-28 03:42:45,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:45,536 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:45,537 INFO L82 PathProgramCache]: Analyzing trace with hash 245468073, now seen corresponding path program 1 times [2019-11-28 03:42:45,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:45,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819055970] [2019-11-28 03:42:45,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:42:45,562 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 03:42:45,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819055970] [2019-11-28 03:42:45,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:42:45,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:42:45,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127407657] [2019-11-28 03:42:45,565 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:42:45,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:42:45,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:42:45,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:42:45,568 INFO L87 Difference]: Start difference. First operand 224 states and 327 transitions. cyclomatic complexity: 105 Second operand 3 states. [2019-11-28 03:42:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:42:45,754 INFO L93 Difference]: Finished difference Result 228 states and 314 transitions. [2019-11-28 03:42:45,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:42:45,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 314 transitions. [2019-11-28 03:42:45,760 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2019-11-28 03:42:45,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 314 transitions. [2019-11-28 03:42:45,763 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2019-11-28 03:42:45,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2019-11-28 03:42:45,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 314 transitions. [2019-11-28 03:42:45,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:42:45,766 INFO L688 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-28 03:42:45,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 314 transitions. [2019-11-28 03:42:45,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-11-28 03:42:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-11-28 03:42:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2019-11-28 03:42:45,780 INFO L711 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-28 03:42:45,781 INFO L591 BuchiCegarLoop]: Abstraction has 228 states and 314 transitions. [2019-11-28 03:42:45,781 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:42:45,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 314 transitions. [2019-11-28 03:42:45,783 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2019-11-28 03:42:45,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:45,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:45,785 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:45,786 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] [2019-11-28 03:42:45,786 INFO L794 eck$LassoCheckResult]: Stem: 1111#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 945#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 946#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1121#L916 main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 1105#L1013 assume 0 != main_~tmp~11; 1005#L989 ~switchedOnBeforeTS~0 := 0; 1006#L840 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 939#L861-1 [2019-11-28 03:42:45,787 INFO L796 eck$LassoCheckResult]: Loop: 939#L861-1 assume !false; 1115#L55 assume test_~splverifierCounter~0 < 4; 1022#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1023#L64 assume !(0 != test_~tmp~0); 1051#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1052#L74 assume !(0 != test_~tmp___0~0); 1084#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 942#L84 assume 0 != test_~tmp___2~0; 944#L90-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;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; 1044#L284 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 1045#L850 assume !(0 != ~pumpRunning~0); 1062#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1063#L214 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 989#L188-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 990#L162-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 974#L447-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 975#L452-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 1047#L333-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 1070#L333-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1066#L339-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 1027#L166-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 987#L137 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 954#L439 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 955#L861 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10); 939#L861-1 [2019-11-28 03:42:45,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:45,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 03:42:45,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:45,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123168336] [2019-11-28 03:42:45,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:45,894 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:45,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:45,896 INFO L82 PathProgramCache]: Analyzing trace with hash 804540373, now seen corresponding path program 1 times [2019-11-28 03:42:45,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:45,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891573970] [2019-11-28 03:42:45,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:42:45,968 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 03:42:45,969 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891573970] [2019-11-28 03:42:45,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:42:45,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 03:42:45,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865033159] [2019-11-28 03:42:45,971 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:42:45,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:42:45,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:42:45,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:42:45,972 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. cyclomatic complexity: 88 Second operand 5 states. [2019-11-28 03:42:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:42:46,329 INFO L93 Difference]: Finished difference Result 1078 states and 1497 transitions. [2019-11-28 03:42:46,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 03:42:46,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1078 states and 1497 transitions. [2019-11-28 03:42:46,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 733 [2019-11-28 03:42:46,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1078 states to 1078 states and 1497 transitions. [2019-11-28 03:42:46,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1078 [2019-11-28 03:42:46,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1078 [2019-11-28 03:42:46,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1078 states and 1497 transitions. [2019-11-28 03:42:46,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:42:46,358 INFO L688 BuchiCegarLoop]: Abstraction has 1078 states and 1497 transitions. [2019-11-28 03:42:46,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states and 1497 transitions. [2019-11-28 03:42:46,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 446. [2019-11-28 03:42:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-11-28 03:42:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 609 transitions. [2019-11-28 03:42:46,383 INFO L711 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2019-11-28 03:42:46,383 INFO L591 BuchiCegarLoop]: Abstraction has 446 states and 609 transitions. [2019-11-28 03:42:46,383 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:42:46,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 446 states and 609 transitions. [2019-11-28 03:42:46,387 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 310 [2019-11-28 03:42:46,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:42:46,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:42:46,389 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:42:46,390 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] [2019-11-28 03:42:46,390 INFO L794 eck$LassoCheckResult]: Stem: 2451#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2272#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 2273#L908 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 2466#L916 main_#t~ret76 := valid_product_#res;main_~tmp~11 := main_#t~ret76;havoc main_#t~ret76; 2444#L1013 assume 0 != main_~tmp~11; 2336#L989 ~switchedOnBeforeTS~0 := 0; 2337#L840 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2391#L861-1 [2019-11-28 03:42:46,391 INFO L796 eck$LassoCheckResult]: Loop: 2391#L861-1 assume !false; 2669#L55 assume test_~splverifierCounter~0 < 4; 2670#L56 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 2700#L64 assume !(0 != test_~tmp~0); 2697#L64-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 2696#L74 assume !(0 != test_~tmp___0~0); 2694#L74-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 2693#L84 assume 0 != test_~tmp___2~0; 2691#L90-2 havoc __utac_acc__Specification5_spec__2_#t~ret72;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; 2690#L284 __utac_acc__Specification5_spec__2_#t~ret72 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret72;havoc __utac_acc__Specification5_spec__2_#t~ret72; 2679#L850 assume !(0 != ~pumpRunning~0); 2397#L130 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret6, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2398#L214 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret5, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 2320#L188-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret4, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 2321#L162-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret25, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2303#L447-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2304#L452-3 isHighWaterLevel_#t~ret25 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret25;havoc isHighWaterLevel_#t~ret25; 2379#L333-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~1 := 0; 2406#L333-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2401#L339-3 processEnvironment__wrappee__highWaterSensor_#t~ret4 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret4;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4; 2360#L166-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 2318#L137 havoc __utac_acc__Specification5_spec__3_#t~ret73, __utac_acc__Specification5_spec__3_#t~ret74, __utac_acc__Specification5_spec__3_~tmp~10, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~10;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;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; 2282#L439 __utac_acc__Specification5_spec__3_#t~ret73 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~10 := __utac_acc__Specification5_spec__3_#t~ret73;havoc __utac_acc__Specification5_spec__3_#t~ret73; 2283#L861 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10;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; 2374#L284-1 __utac_acc__Specification5_spec__3_#t~ret74 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret74;havoc __utac_acc__Specification5_spec__3_#t~ret74; 2375#L865 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2391#L861-1 [2019-11-28 03:42:46,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:46,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2019-11-28 03:42:46,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:46,393 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536414306] [2019-11-28 03:42:46,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:46,491 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:46,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:46,492 INFO L82 PathProgramCache]: Analyzing trace with hash 69177840, now seen corresponding path program 1 times [2019-11-28 03:42:46,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:46,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370490159] [2019-11-28 03:42:46,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:46,519 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:46,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:42:46,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1897033802, now seen corresponding path program 1 times [2019-11-28 03:42:46,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:42:46,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603892204] [2019-11-28 03:42:46,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:42:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:42:46,660 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:42:46,809 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-28 03:43:08,850 WARN L192 SmtUtils]: Spent 21.94 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:43:21,767 WARN L192 SmtUtils]: Spent 12.91 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:43:21,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:43:21 BoogieIcfgContainer [2019-11-28 03:43:21,843 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:43:21,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:43:21,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:43:21,844 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:43:21,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:44" (3/4) ... [2019-11-28 03:43:21,848 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:43:21,909 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:43:21,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:43:21,912 INFO L168 Benchmark]: Toolchain (without parser) took 39928.29 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 163.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:21,912 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:43:21,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:21,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.79 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 03:43:21,914 INFO L168 Benchmark]: Boogie Preprocessor took 72.41 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:21,915 INFO L168 Benchmark]: RCFGBuilder took 1280.58 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: 89.4 MB). Peak memory consumption was 89.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:21,916 INFO L168 Benchmark]: BuchiAutomizer took 37736.12 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -90.3 MB). Peak memory consumption was 358.3 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:21,916 INFO L168 Benchmark]: Witness Printer took 66.49 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2019-11-28 03:43:21,920 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 673.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.79 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. * Boogie Preprocessor took 72.41 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1280.58 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: 89.4 MB). Peak memory consumption was 89.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37736.12 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -90.3 MB). Peak memory consumption was 358.3 MB. Max. memory is 11.5 GB. * Witness Printer took 66.49 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: 24 B). Peak memory consumption was 24 B. 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 6 locations. The remainder module has 446 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 36.5s. 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 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 632 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 446 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1046 SDtfs, 2438 SDslu, 1361 SDs, 0 SdLazy, 237 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 54]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6956} State at position 1 is {NULL=0, NULL=0, NULL=6957, NULL=6967, NULL=6956, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b60e14a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3aa138be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3735613a=65, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1931c209=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e98d844=0, retValue_acc=1, NULL=6962, methaneLevelCritical=0, NULL=0, retValue_acc=0, NULL=6977, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@770f8148=0, tmp___1=0, NULL=6973, NULL=6979, cleanupTimeShifts=4, tmp=0, NULL=6976, tmp=1, waterLevel=1, NULL=0, NULL=6975, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c8013ba=0, NULL=0, tmp___0=0, NULL=6966, \result=1, head=0, pumpRunning=0, NULL=6969, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6900f2df=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b44bc05=0, NULL=0, NULL=0, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31d447c3=0, tmp=1, NULL=6978, retValue_acc=1, NULL=6961, tmp=0, head=0, NULL=0, NULL=6959, NULL=6971, tmp=0, NULL=6970, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=6974, tmp=0, NULL=6965, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74c41d82=0, \result=0, NULL=0, systemActive=1, NULL=6981, \result=1, NULL=0, NULL=0, NULL=6960, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=6958, \result=0, tmp___0=0, NULL=6980, NULL=0, NULL=0, NULL=6964, NULL=6968, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38b9b8c9=0, tmp___2=65, splverifierCounter=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=6972, NULL=0, NULL=6963} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L118] int pumpRunning = 0; [L119] int systemActive = 1; [L364] int waterLevel = 1; [L365] int methaneLevelCritical = 0; [L636] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int switchedOnBeforeTS ; [L930] int cleanupTimeShifts = 4; [L1004] int retValue_acc ; [L1005] int tmp ; [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); [L1011] tmp = valid_product() [L1013] COND TRUE \read(tmp) [L839] switchedOnBeforeTS = 0 [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 Loop: [L54] COND TRUE 1 [L56] COND TRUE splverifierCounter < 4 [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) [L280] int retValue_acc ; [L283] retValue_acc = pumpRunning [L284] return (retValue_acc); [L848] switchedOnBeforeTS = isPumpRunning() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND TRUE \read(systemActive) [L211] int tmp ; [L214] COND FALSE !(\read(pumpRunning)) [L185] int tmp ; [L188] COND FALSE !(\read(pumpRunning)) [L159] int tmp ; [L162] COND TRUE ! pumpRunning [L325] int retValue_acc ; [L326] int tmp ; [L327] int tmp___0 ; [L444] int retValue_acc ; [L447] COND TRUE waterLevel < 2 [L448] retValue_acc = 1 [L449] return (retValue_acc); [L331] tmp = isHighWaterSensorDry() [L333] COND TRUE \read(tmp) [L334] tmp___0 = 0 [L338] retValue_acc = tmp___0 [L339] return (retValue_acc); [L164] tmp = isHighWaterLevel() [L166] COND FALSE !(\read(tmp)) [L854] int tmp ; [L855] int tmp___0 ; [L435] int retValue_acc ; [L438] retValue_acc = waterLevel [L439] return (retValue_acc); [L859] tmp = getWaterLevel() [L861] COND TRUE tmp != 2 [L280] int retValue_acc ; [L283] retValue_acc = pumpRunning [L284] return (retValue_acc); [L863] tmp___0 = isPumpRunning() [L865] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...