./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product36.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_spec2_product36.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 49fa497f38e3a46185ee804b3f30fdc119cb200c .............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:30:21,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:30:21,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:30:21,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:30:21,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:30:21,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:30:21,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:30:21,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:30:21,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:30:21,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:30:21,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:30:21,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:30:21,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:30:21,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:30:21,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:30:21,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:30:21,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:30:21,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:30:21,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:30:21,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:30:21,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:30:21,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:30:21,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:30:21,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:30:21,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:30:21,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:30:21,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:30:21,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:30:21,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:30:21,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:30:21,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:30:21,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:30:21,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:30:21,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:30:21,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:30:21,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:30:21,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:30:21,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:30:21,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:30:21,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:30:21,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:30:21,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:30:21,719 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:30:21,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:30:21,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:30:21,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:30:21,725 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:30:21,725 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:30:21,725 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:30:21,725 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:30:21,726 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:30:21,726 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:30:21,726 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:30:21,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:30:21,727 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:30:21,727 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:30:21,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:30:21,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:30:21,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:30:21,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:30:21,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:30:21,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:30:21,728 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:30:21,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:30:21,729 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:30:21,729 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:30:21,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:30:21,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:30:21,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:30:21,730 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:30:21,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:30:21,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:30:21,730 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:30:21,731 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:30:21,732 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 -> 49fa497f38e3a46185ee804b3f30fdc119cb200c [2019-11-28 03:30:22,068 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:30:22,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:30:22,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:30:22,097 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:30:22,098 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:30:22,099 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2019-11-28 03:30:22,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/126291195/cae42946607640a1a7c9b8cf7103ad70/FLAGfb55d1755 [2019-11-28 03:30:22,746 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:30:22,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2019-11-28 03:30:22,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/126291195/cae42946607640a1a7c9b8cf7103ad70/FLAGfb55d1755 [2019-11-28 03:30:23,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/126291195/cae42946607640a1a7c9b8cf7103ad70 [2019-11-28 03:30:23,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:30:23,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:30:23,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:30:23,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:30:23,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:30:23,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2fe004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23, skipping insertion in model container [2019-11-28 03:30:23,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:30:23,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:30:23,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:30:23,534 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:30:23,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:30:23,690 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:30:23,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23 WrapperNode [2019-11-28 03:30:23,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:30:23,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:30:23,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:30:23,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:30:23,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:30:23,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:30:23,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:30:23,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:30:23,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (1/1) ... [2019-11-28 03:30:23,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:30:23,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:30:23,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:30:23,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:30:23,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (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 03:30:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:30:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:30:23,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:30:23,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:30:24,618 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:30:24,619 INFO L297 CfgBuilder]: Removed 104 assume(true) statements. [2019-11-28 03:30:24,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:24 BoogieIcfgContainer [2019-11-28 03:30:24,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:30:24,621 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:30:24,621 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:30:24,625 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:30:24,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:30:24,626 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:30:23" (1/3) ... [2019-11-28 03:30:24,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3539ec27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:30:24, skipping insertion in model container [2019-11-28 03:30:24,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:30:24,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:30:23" (2/3) ... [2019-11-28 03:30:24,628 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3539ec27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:30:24, skipping insertion in model container [2019-11-28 03:30:24,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:30:24,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:24" (3/3) ... [2019-11-28 03:30:24,630 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2019-11-28 03:30:24,675 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:30:24,676 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:30:24,676 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:30:24,676 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:30:24,676 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:30:24,677 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:30:24,677 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:30:24,677 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:30:24,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-11-28 03:30:24,718 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 03:30:24,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:30:24,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:30:24,727 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:24,727 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:24,727 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:30:24,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states. [2019-11-28 03:30:24,733 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2019-11-28 03:30:24,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:30:24,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:30:24,735 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:24,735 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:24,741 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 11#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~8, main_~tmp~3;havoc main_~retValue_acc~8;havoc main_~tmp~3; 53#L532true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 77#L540true main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 5#L632true assume 0 != main_~tmp~3; 71#L606true ~methAndRunningLastTime~0 := 0; 44#L911true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 19#L922-1true [2019-11-28 03:30:24,742 INFO L796 eck$LassoCheckResult]: Loop: 19#L922-1true assume !false; 38#L838true assume test_~splverifierCounter~0 < 4; 58#L839true test_~tmp~6 := test_#t~nondet66;havoc test_#t~nondet66; 83#L847true assume !(0 != test_~tmp~6); 65#L847-1true test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 46#L857true assume !(0 != test_~tmp___0~1); 47#L857-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 21#L867true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 52#L875-1true assume !(0 != ~pumpRunning~0); 34#L659true assume !(0 != ~systemActive~0); 41#L666true havoc __utac_acc__Specification2_spec__2_#t~ret70, __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 64#L90true __utac_acc__Specification2_spec__2_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret70;havoc __utac_acc__Specification2_spec__2_#t~ret70; 42#L922true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 19#L922-1true [2019-11-28 03:30:24,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:24,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 03:30:24,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:24,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143442292] [2019-11-28 03:30:24,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,099 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:25,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:25,101 INFO L82 PathProgramCache]: Analyzing trace with hash 12296212, now seen corresponding path program 1 times [2019-11-28 03:30:25,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:25,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232090150] [2019-11-28 03:30:25,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:30:25,187 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 03:30:25,189 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232090150] [2019-11-28 03:30:25,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:30:25,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:30:25,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596582830] [2019-11-28 03:30:25,200 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:30:25,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:30:25,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:30:25,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:30:25,220 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 3 states. [2019-11-28 03:30:25,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:30:25,310 INFO L93 Difference]: Finished difference Result 155 states and 223 transitions. [2019-11-28 03:30:25,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:30:25,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 223 transitions. [2019-11-28 03:30:25,321 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 98 [2019-11-28 03:30:25,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 141 states and 208 transitions. [2019-11-28 03:30:25,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 141 [2019-11-28 03:30:25,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 141 [2019-11-28 03:30:25,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 208 transitions. [2019-11-28 03:30:25,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:30:25,342 INFO L688 BuchiCegarLoop]: Abstraction has 141 states and 208 transitions. [2019-11-28 03:30:25,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 208 transitions. [2019-11-28 03:30:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2019-11-28 03:30:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-11-28 03:30:25,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 205 transitions. [2019-11-28 03:30:25,411 INFO L711 BuchiCegarLoop]: Abstraction has 139 states and 205 transitions. [2019-11-28 03:30:25,411 INFO L591 BuchiCegarLoop]: Abstraction has 139 states and 205 transitions. [2019-11-28 03:30:25,411 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:30:25,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 205 transitions. [2019-11-28 03:30:25,419 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2019-11-28 03:30:25,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:30:25,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:30:25,422 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:25,423 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:25,423 INFO L794 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 257#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~8, main_~tmp~3;havoc main_~retValue_acc~8;havoc main_~tmp~3; 258#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 317#L540 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 249#L632 assume 0 != main_~tmp~3; 250#L606 ~methAndRunningLastTime~0 := 0; 309#L911 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 310#L922-1 [2019-11-28 03:30:25,423 INFO L796 eck$LassoCheckResult]: Loop: 310#L922-1 assume !false; 363#L838 assume test_~splverifierCounter~0 < 4; 320#L839 test_~tmp~6 := test_#t~nondet66;havoc test_#t~nondet66; 321#L847 assume !(0 != test_~tmp~6); 263#L847-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 312#L857 assume !(0 != test_~tmp___0~1); 302#L857-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 273#L867 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 275#L875-1 assume !(0 != ~pumpRunning~0); 293#L659 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 259#L691 assume !(0 == ~pumpRunning~0); 261#L666 havoc __utac_acc__Specification2_spec__2_#t~ret70, __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 304#L90 __utac_acc__Specification2_spec__2_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret70;havoc __utac_acc__Specification2_spec__2_#t~ret70; 325#L922 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 310#L922-1 [2019-11-28 03:30:25,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:25,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 03:30:25,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:25,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464469158] [2019-11-28 03:30:25,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,569 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:25,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:25,570 INFO L82 PathProgramCache]: Analyzing trace with hash 349571873, now seen corresponding path program 1 times [2019-11-28 03:30:25,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:25,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813881946] [2019-11-28 03:30:25,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:30:25,592 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 03:30:25,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813881946] [2019-11-28 03:30:25,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:30:25,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:30:25,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278954850] [2019-11-28 03:30:25,594 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:30:25,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:30:25,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:30:25,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:30:25,595 INFO L87 Difference]: Start difference. First operand 139 states and 205 transitions. cyclomatic complexity: 69 Second operand 3 states. [2019-11-28 03:30:25,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:30:25,673 INFO L93 Difference]: Finished difference Result 228 states and 323 transitions. [2019-11-28 03:30:25,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:30:25,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 323 transitions. [2019-11-28 03:30:25,677 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 163 [2019-11-28 03:30:25,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 228 states and 323 transitions. [2019-11-28 03:30:25,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 228 [2019-11-28 03:30:25,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2019-11-28 03:30:25,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 228 states and 323 transitions. [2019-11-28 03:30:25,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:30:25,685 INFO L688 BuchiCegarLoop]: Abstraction has 228 states and 323 transitions. [2019-11-28 03:30:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states and 323 transitions. [2019-11-28 03:30:25,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-11-28 03:30:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-11-28 03:30:25,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 323 transitions. [2019-11-28 03:30:25,704 INFO L711 BuchiCegarLoop]: Abstraction has 228 states and 323 transitions. [2019-11-28 03:30:25,704 INFO L591 BuchiCegarLoop]: Abstraction has 228 states and 323 transitions. [2019-11-28 03:30:25,706 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:30:25,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states and 323 transitions. [2019-11-28 03:30:25,708 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 163 [2019-11-28 03:30:25,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:30:25,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:30:25,712 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:25,712 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:30:25,713 INFO L794 eck$LassoCheckResult]: Stem: 668#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 630#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~8, main_~tmp~3;havoc main_~retValue_acc~8;havoc main_~tmp~3; 631#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 694#L540 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 622#L632 assume 0 != main_~tmp~3; 623#L606 ~methAndRunningLastTime~0 := 0; 685#L911 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 686#L922-1 [2019-11-28 03:30:25,713 INFO L796 eck$LassoCheckResult]: Loop: 686#L922-1 assume !false; 784#L838 assume test_~splverifierCounter~0 < 4; 697#L839 test_~tmp~6 := test_#t~nondet66;havoc test_#t~nondet66; 698#L847 assume !(0 != test_~tmp~6); 635#L847-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 689#L857 assume !(0 != test_~tmp___0~1); 678#L857-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 644#L867 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 646#L875-1 assume !(0 != ~pumpRunning~0); 667#L659 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 632#L691 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 633#L130 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 628#L135 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 618#L793 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~0 := 0; 619#L793-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 706#L799 processEnvironment_#t~ret47 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret47;havoc processEnvironment_#t~ret47; 707#L695 assume !(0 != processEnvironment_~tmp~4); 771#L666 havoc __utac_acc__Specification2_spec__2_#t~ret70, __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 789#L90 __utac_acc__Specification2_spec__2_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret70;havoc __utac_acc__Specification2_spec__2_#t~ret70; 787#L922 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 686#L922-1 [2019-11-28 03:30:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:25,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 03:30:25,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:25,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805991800] [2019-11-28 03:30:25,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,834 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:25,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:25,835 INFO L82 PathProgramCache]: Analyzing trace with hash -678407123, now seen corresponding path program 1 times [2019-11-28 03:30:25,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:25,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664993811] [2019-11-28 03:30:25,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,850 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:25,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:30:25,851 INFO L82 PathProgramCache]: Analyzing trace with hash 487169651, now seen corresponding path program 1 times [2019-11-28 03:30:25,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:30:25,852 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188831053] [2019-11-28 03:30:25,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:30:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:30:25,937 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:30:26,089 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-28 03:30:53,146 WARN L192 SmtUtils]: Spent 26.97 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 03:31:06,476 WARN L192 SmtUtils]: Spent 13.32 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 03:31:06,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:31:06 BoogieIcfgContainer [2019-11-28 03:31:06,545 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:31:06,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:31:06,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:31:06,546 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:31:06,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:30:24" (3/4) ... [2019-11-28 03:31:06,550 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:31:06,610 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:31:06,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:31:06,612 INFO L168 Benchmark]: Toolchain (without parser) took 43596.60 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 310.9 MB). Free memory was 955.0 MB in the beginning and 1.3 GB in the end (delta: -310.7 MB). Peak memory consumption was 225.9 kB. Max. memory is 11.5 GB. [2019-11-28 03:31:06,612 INFO L168 Benchmark]: CDTParser took 0.25 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 03:31:06,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:31:06,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.20 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:31:06,614 INFO L168 Benchmark]: Boogie Preprocessor took 38.08 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 03:31:06,615 INFO L168 Benchmark]: RCFGBuilder took 823.98 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: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:31:06,616 INFO L168 Benchmark]: BuchiAutomizer took 41924.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -215.5 MB). Peak memory consumption was 363.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:31:06,616 INFO L168 Benchmark]: Witness Printer took 64.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:31:06,620 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 674.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.20 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.08 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 823.98 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: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41924.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -215.5 MB). Peak memory consumption was 363.5 MB. Max. memory is 11.5 GB. * Witness Printer took 64.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 228 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 41.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 228 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 235 SDtfs, 199 SDslu, 158 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 837]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7472} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b38187b=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=7476, NULL=7472, NULL=0, NULL=0, NULL=7478, NULL=0, NULL=7479, retValue_acc=0, NULL=0, NULL=16520, NULL=16521, methaneLevelCritical=0, NULL=16195, tmp___0=0, NULL=16517, NULL=16194, tmp=0, tmp___1=0, NULL=7474, NULL=7475, NULL=7477, cleanupTimeShifts=4, NULL=16518, NULL=7483, NULL=16515, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10759441=0, NULL=0, NULL=16522, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ba2629=0, NULL=0, NULL=0, NULL=0, NULL=16526, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=16525, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73fe75d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f4586e3=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61c100f5=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52f832ee=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bfd196c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a1496d6=0, \result=1, retValue_acc=1, retValue_acc=0, NULL=7482, tmp___2=55, tmp=1, NULL=7480, tmp___0=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=7481, head=0, tmp=0, NULL=0, NULL=16524, NULL=0, NULL=0, NULL=16519, NULL=0, NULL=7473, NULL=16516, NULL=16523, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L545] int cleanupTimeShifts = 4; [L651] int pumpRunning = 0; [L652] int systemActive = 1; [L905] int methAndRunningLastTime ; [L623] int retValue_acc ; [L624] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L630] tmp = valid_product() [L632] COND TRUE \read(tmp) [L910] methAndRunningLastTime = 0 [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 Loop: [L837] COND TRUE 1 [L839] COND TRUE splverifierCounter < 4 [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___2) [L822] systemActive = 1 [L659] COND FALSE !(\read(pumpRunning)) [L666] COND TRUE \read(systemActive) [L688] int tmp ; [L691] COND TRUE ! pumpRunning [L785] int retValue_acc ; [L786] int tmp ; [L787] int tmp___0 ; [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] return (retValue_acc); [L791] tmp = isHighWaterSensorDry() [L793] COND TRUE \read(tmp) [L794] tmp___0 = 0 [L798] retValue_acc = tmp___0 [L799] return (retValue_acc); [L693] tmp = isHighWaterLevel() [L695] COND FALSE !(\read(tmp)) [L915] int tmp ; [L916] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L938] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...