./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product14.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 99eaecf53b705ce7ede6eb19864d6c34a239ca25 ........................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 20:04:22,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:04:22,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:04:22,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:04:22,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:04:22,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:04:22,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:04:22,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:04:22,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:04:22,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:04:22,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:04:22,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:04:22,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:04:22,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:04:22,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:04:22,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:04:22,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:04:22,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:04:22,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:04:22,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:04:22,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:04:22,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:04:22,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:04:22,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:04:22,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:04:22,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:04:22,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:04:22,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:04:22,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:04:22,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:04:22,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:04:22,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:04:22,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:04:22,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:04:22,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:04:22,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:04:22,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:04:22,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:04:22,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:04:22,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:04:22,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:04:22,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:04:22,669 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:04:22,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:04:22,671 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:04:22,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:04:22,671 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:04:22,671 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:04:22,672 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:04:22,672 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:04:22,672 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:04:22,673 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:04:22,673 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:04:22,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:04:22,673 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:04:22,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:04:22,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:04:22,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:04:22,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:04:22,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:04:22,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:04:22,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:04:22,676 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:04:22,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:04:22,676 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:04:22,676 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:04:22,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:04:22,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:04:22,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:04:22,677 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:04:22,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:04:22,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:04:22,678 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:04:22,679 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:04:22,680 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 -> 99eaecf53b705ce7ede6eb19864d6c34a239ca25 [2019-11-19 20:04:22,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:04:22,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:04:22,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:04:22,999 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:04:22,999 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:04:23,000 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2019-11-19 20:04:23,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44050e4e7/28ca779b9a094deb8ba862bba76b6494/FLAGffdd27bdb [2019-11-19 20:04:23,553 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:04:23,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2019-11-19 20:04:23,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44050e4e7/28ca779b9a094deb8ba862bba76b6494/FLAGffdd27bdb [2019-11-19 20:04:23,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44050e4e7/28ca779b9a094deb8ba862bba76b6494 [2019-11-19 20:04:23,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:04:23,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:04:23,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:04:23,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:04:23,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:04:23,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:23" (1/1) ... [2019-11-19 20:04:23,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10724550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:23, skipping insertion in model container [2019-11-19 20:04:23,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:23" (1/1) ... [2019-11-19 20:04:23,908 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:04:23,972 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:04:24,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:04:24,415 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:04:24,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:04:24,549 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:04:24,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24 WrapperNode [2019-11-19 20:04:24,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:04:24,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:04:24,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:04:24,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:04:24,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... [2019-11-19 20:04:24,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... [2019-11-19 20:04:24,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:04:24,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:04:24,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:04:24,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:04:24,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... [2019-11-19 20:04:24,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... [2019-11-19 20:04:24,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... [2019-11-19 20:04:24,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... [2019-11-19 20:04:24,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... [2019-11-19 20:04:24,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... [2019-11-19 20:04:24,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... [2019-11-19 20:04:24,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:04:24,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:04:24,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:04:24,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:04:24,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:04:24,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:04:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 20:04:24,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:04:24,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:04:25,377 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:04:25,378 INFO L285 CfgBuilder]: Removed 98 assume(true) statements. [2019-11-19 20:04:25,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:25 BoogieIcfgContainer [2019-11-19 20:04:25,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:04:25,380 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:04:25,380 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:04:25,384 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:04:25,385 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:04:25,385 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:04:23" (1/3) ... [2019-11-19 20:04:25,386 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18c8efd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:04:25, skipping insertion in model container [2019-11-19 20:04:25,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:04:25,386 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:24" (2/3) ... [2019-11-19 20:04:25,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18c8efd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:04:25, skipping insertion in model container [2019-11-19 20:04:25,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:04:25,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:25" (3/3) ... [2019-11-19 20:04:25,389 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product14.cil.c [2019-11-19 20:04:25,432 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:04:25,432 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:04:25,432 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:04:25,432 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:04:25,433 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:04:25,433 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:04:25,433 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:04:25,434 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:04:25,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states. [2019-11-19 20:04:25,471 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2019-11-19 20:04:25,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:04:25,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:04:25,478 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:04:25,478 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:04:25,478 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:04:25,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states. [2019-11-19 20:04:25,485 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2019-11-19 20:04:25,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:04:25,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:04:25,486 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:04:25,486 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:04:25,490 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 14#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 8#L73true main_#t~ret69 := valid_product_#res;main_~tmp~6 := main_#t~ret69;havoc main_#t~ret69; 56#L854true assume 0 != main_~tmp~6; 46#L831true havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 58#L876-1true [2019-11-19 20:04:25,491 INFO L796 eck$LassoCheckResult]: Loop: 58#L876-1true assume !false; 6#L544true assume test_~splverifierCounter~0 < 4; 23#L545true test_~tmp~3 := test_#t~nondet46;havoc test_#t~nondet46; 26#L553true assume !(0 != test_~tmp~3); 31#L553-1true test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 13#L563true assume !(0 != test_~tmp___0~0); 15#L563-1true test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 64#L573true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3#L581-2true assume !(0 != ~pumpRunning~0); 37#L612true assume !(0 != ~systemActive~0); 42#L619true havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 62#L159true __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 54#L876true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 58#L876-1true [2019-11-19 20:04:25,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:25,498 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-19 20:04:25,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:25,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600183439] [2019-11-19 20:04:25,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:26,331 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:26,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:26,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1680944957, now seen corresponding path program 1 times [2019-11-19 20:04:26,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:26,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630789824] [2019-11-19 20:04:26,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:04:26,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:04:26,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630789824] [2019-11-19 20:04:26,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:04:26,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:04:26,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115091239] [2019-11-19 20:04:26,410 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:04:26,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:04:26,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:04:26,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:04:26,430 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 3 states. [2019-11-19 20:04:26,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:04:26,486 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2019-11-19 20:04:26,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:04:26,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 89 transitions. [2019-11-19 20:04:26,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2019-11-19 20:04:26,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2019-11-19 20:04:26,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2019-11-19 20:04:26,514 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2019-11-19 20:04:26,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2019-11-19 20:04:26,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:04:26,515 INFO L688 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2019-11-19 20:04:26,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2019-11-19 20:04:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2019-11-19 20:04:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-19 20:04:26,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2019-11-19 20:04:26,544 INFO L711 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2019-11-19 20:04:26,544 INFO L591 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2019-11-19 20:04:26,545 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:04:26,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2019-11-19 20:04:26,552 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2019-11-19 20:04:26,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:04:26,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:04:26,553 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:04:26,553 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:04:26,554 INFO L794 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(13);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string60.base, #t~string60.offset, 1);call write~init~int(80, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(117, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(109, #t~string60.base, 3 + #t~string60.offset, 1);call write~init~int(112, #t~string60.base, 4 + #t~string60.offset, 1);call write~init~int(58, #t~string60.base, 5 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 6 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string66.base, #t~string66.offset, 1);call write~init~int(32, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string68.base, #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 1 + #t~string68.offset, 1);~cleanupTimeShifts~0 := 4; 157#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 158#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 153#L73 main_#t~ret69 := valid_product_#res;main_~tmp~6 := main_#t~ret69;havoc main_#t~ret69; 154#L854 assume 0 != main_~tmp~6; 195#L831 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 196#L876-1 [2019-11-19 20:04:26,554 INFO L796 eck$LassoCheckResult]: Loop: 196#L876-1 assume !false; 148#L544 assume test_~splverifierCounter~0 < 4; 149#L545 test_~tmp~3 := test_#t~nondet46;havoc test_#t~nondet46; 175#L553 assume !(0 != test_~tmp~3); 145#L553-1 test_~tmp___0~0 := test_#t~nondet47;havoc test_#t~nondet47; 160#L563 assume !(0 != test_~tmp___0~0); 161#L563-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 163#L573 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 141#L581-2 assume !(0 != ~pumpRunning~0); 142#L612 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret50, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 165#L644 assume !(0 != ~pumpRunning~0); 166#L619 havoc __utac_acc__Specification4_spec__1_#t~ret70, __utac_acc__Specification4_spec__1_#t~ret71, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 190#L159 __utac_acc__Specification4_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret70;havoc __utac_acc__Specification4_spec__1_#t~ret70; 199#L876 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 196#L876-1 [2019-11-19 20:04:26,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:26,556 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-19 20:04:26,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:26,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423525068] [2019-11-19 20:04:26,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:26,957 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:26,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:26,958 INFO L82 PathProgramCache]: Analyzing trace with hash -590214405, now seen corresponding path program 1 times [2019-11-19 20:04:26,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:26,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340551132] [2019-11-19 20:04:26,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:26,977 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:26,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:26,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1012825121, now seen corresponding path program 1 times [2019-11-19 20:04:26,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:26,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270508782] [2019-11-19 20:04:26,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:27,328 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:27,486 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-11-19 20:04:49,873 WARN L191 SmtUtils]: Spent 22.31 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-11-19 20:05:02,077 WARN L191 SmtUtils]: Spent 12.20 s on a formula simplification that was a NOOP. DAG size: 449 [2019-11-19 20:05:02,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:05:02 BoogieIcfgContainer [2019-11-19 20:05:02,163 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:05:02,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:05:02,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:05:02,164 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:05:02,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:25" (3/4) ... [2019-11-19 20:05:02,168 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 20:05:02,242 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:05:02,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:05:02,244 INFO L168 Benchmark]: Toolchain (without parser) took 38351.64 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 345.5 MB). Free memory was 963.1 MB in the beginning and 1.0 GB in the end (delta: -82.0 MB). Peak memory consumption was 263.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:02,244 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:05:02,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:02,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.73 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. [2019-11-19 20:05:02,246 INFO L168 Benchmark]: Boogie Preprocessor took 33.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:05:02,247 INFO L168 Benchmark]: RCFGBuilder took 725.70 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: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:02,249 INFO L168 Benchmark]: BuchiAutomizer took 36783.47 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 415.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:02,249 INFO L168 Benchmark]: Witness Printer took 78.42 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:05:02,255 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 657.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.73 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 33.63 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 725.70 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: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36783.47 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 415.5 MB. Max. memory is 11.5 GB. * Witness Printer took 78.42 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 36.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 86 SDtfs, 86 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 543]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47df98b0=0, NULL=0, NULL=0, NULL=0, NULL=-19, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f42c4cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@af1bb41=59, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ecbab37=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1715fe94=0, NULL=0, NULL=-24, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@985340c=0, NULL=-10, NULL=-8, methaneLevelCritical=0, NULL=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f73b336=0, tmp=0, NULL=-2, NULL=0, NULL=-15, NULL=0, NULL=-17, NULL=-20, tmp___1=0, NULL=-25, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=-18, cleanupTimeShifts=4, NULL=-13, NULL=-21, NULL=-4, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=-9, NULL=0, NULL=0, tmp___0=0, NULL=-5, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@245e620=0, NULL=0, retValue_acc=1, NULL=-12, \result=1, head=0, pumpRunning=0, \result=0, NULL=-11, NULL=0, NULL=0, tmp=1, retValue_acc=1, tmp=1, tmp___2=59, NULL=-22, splverifierCounter=0, NULL=-16, head=0, tmp=0, NULL=-23, NULL=0, NULL=0, NULL=-6, NULL=-14, NULL=-7, NULL=-3} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L333] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L604] int pumpRunning = 0; [L605] int systemActive = 1; [L772] int cleanupTimeShifts = 4; [L845] int retValue_acc ; [L846] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L852] tmp = valid_product() [L854] COND TRUE \read(tmp) [L534] int splverifierCounter ; [L535] int tmp ; [L536] int tmp___0 ; [L537] int tmp___1 ; [L538] int tmp___2 ; [L541] splverifierCounter = 0 Loop: [L543] COND TRUE 1 [L545] COND TRUE splverifierCounter < 4 [L551] tmp = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp)) [L561] tmp___0 = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp___0)) [L571] tmp___2 = __VERIFIER_nondet_int() [L573] COND TRUE \read(tmp___2) [L758] systemActive = 1 [L612] COND FALSE !(\read(pumpRunning)) [L619] COND TRUE \read(systemActive) [L641] int tmp ; [L644] COND FALSE !(\read(pumpRunning)) [L869] int tmp ; [L870] int tmp___0 ; [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L874] tmp = getWaterLevel() [L876] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...