./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product30.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 06e9efb7ee4abc37e21a919ff8d0a93ec8f3ff5c ................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:02:18,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:02:18,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:02:18,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:02:18,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:02:18,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:02:18,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:02:18,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:02:18,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:02:18,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:02:18,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:02:18,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:02:18,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:02:18,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:02:18,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:02:18,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:02:18,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:02:18,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:02:18,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:02:18,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:02:18,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:02:18,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:02:18,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:02:18,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:02:18,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:02:18,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:02:18,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:02:18,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:02:18,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:02:18,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:02:18,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:02:18,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:02:18,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:02:18,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:02:18,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:02:18,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:02:18,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:02:18,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:02:18,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:02:18,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:02:18,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:02:18,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:02:18,424 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:02:18,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:02:18,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:02:18,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:02:18,427 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:02:18,428 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:02:18,428 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:02:18,428 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:02:18,428 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:02:18,428 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:02:18,430 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:02:18,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:02:18,430 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:02:18,431 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:02:18,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:02:18,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:02:18,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:02:18,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:02:18,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:02:18,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:02:18,432 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:02:18,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:02:18,432 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:02:18,433 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:02:18,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:02:18,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:02:18,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:02:18,433 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:02:18,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:02:18,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:02:18,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:02:18,435 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:02:18,437 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:02:18,437 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 -> 06e9efb7ee4abc37e21a919ff8d0a93ec8f3ff5c [2019-11-28 21:02:18,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:02:18,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:02:18,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:02:18,779 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:02:18,779 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:02:18,780 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product30.cil.c [2019-11-28 21:02:18,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63dc13b25/bf814b2d0461423184b48fdf7daa458d/FLAG4dd430767 [2019-11-28 21:02:19,446 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:02:19,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product30.cil.c [2019-11-28 21:02:19,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63dc13b25/bf814b2d0461423184b48fdf7daa458d/FLAG4dd430767 [2019-11-28 21:02:19,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63dc13b25/bf814b2d0461423184b48fdf7daa458d [2019-11-28 21:02:19,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:02:19,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:02:19,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:02:19,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:02:19,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:02:19,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:02:19" (1/1) ... [2019-11-28 21:02:19,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21aba202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:19, skipping insertion in model container [2019-11-28 21:02:19,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:02:19" (1/1) ... [2019-11-28 21:02:19,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:02:19,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:02:20,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:02:20,261 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:02:20,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:02:20,384 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:02:20,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20 WrapperNode [2019-11-28 21:02:20,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:02:20,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:02:20,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:02:20,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:02:20,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... [2019-11-28 21:02:20,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... [2019-11-28 21:02:20,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:02:20,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:02:20,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:02:20,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:02:20,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... [2019-11-28 21:02:20,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... [2019-11-28 21:02:20,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... [2019-11-28 21:02:20,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... [2019-11-28 21:02:20,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... [2019-11-28 21:02:20,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... [2019-11-28 21:02:20,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... [2019-11-28 21:02:20,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:02:20,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:02:20,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:02:20,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:02:20,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:02:20,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:02:20,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:02:20,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:02:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:02:21,401 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:02:21,401 INFO L287 CfgBuilder]: Removed 160 assume(true) statements. [2019-11-28 21:02:21,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:21 BoogieIcfgContainer [2019-11-28 21:02:21,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:02:21,403 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:02:21,403 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:02:21,407 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:02:21,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:21,408 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:02:19" (1/3) ... [2019-11-28 21:02:21,409 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@410829f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:02:21, skipping insertion in model container [2019-11-28 21:02:21,409 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:21,409 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:20" (2/3) ... [2019-11-28 21:02:21,410 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@410829f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:02:21, skipping insertion in model container [2019-11-28 21:02:21,410 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:21,410 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:21" (3/3) ... [2019-11-28 21:02:21,412 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product30.cil.c [2019-11-28 21:02:21,456 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:02:21,456 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:02:21,456 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:02:21,457 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:02:21,457 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:02:21,457 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:02:21,457 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:02:21,457 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:02:21,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states. [2019-11-28 21:02:21,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-28 21:02:21,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:21,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:21,510 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:21,511 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:21,511 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:02:21,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states. [2019-11-28 21:02:21,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-28 21:02:21,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:21,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:21,520 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:21,521 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:21,527 INFO L794 eck$LassoCheckResult]: Stem: 82#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 10#L431true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 12#L439true main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 6#L533true assume 0 != main_~tmp~3; 36#L507true ~methAndRunningLastTime~0 := 0; 21#L931true havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 23#L942-1true [2019-11-28 21:02:21,528 INFO L796 eck$LassoCheckResult]: Loop: 23#L942-1true assume !false; 24#L653true assume test_~splverifierCounter~0 < 4; 3#L654true test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 13#L662true assume !(0 != test_~tmp~4); 14#L662-1true test_~tmp___0~0 := test_#t~nondet48;havoc test_#t~nondet48; 55#L672true assume !(0 != test_~tmp___0~0); 57#L672-1true test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 94#L682true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 106#L690-2true assume !(0 != ~pumpRunning~0); 9#L720true assume !(0 != ~systemActive~0); 49#L727true havoc __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 34#L595-1true __utac_acc__Specification2_spec__2_#t~ret72 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret72;havoc __utac_acc__Specification2_spec__2_#t~ret72; 19#L942true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 23#L942-1true [2019-11-28 21:02:21,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:21,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:02:21,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:21,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575588991] [2019-11-28 21:02:21,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:21,980 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:21,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:21,982 INFO L82 PathProgramCache]: Analyzing trace with hash 4938827, now seen corresponding path program 1 times [2019-11-28 21:02:21,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:21,983 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901069300] [2019-11-28 21:02:21,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:02:22,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:02:22,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901069300] [2019-11-28 21:02:22,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:02:22,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:02:22,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799009199] [2019-11-28 21:02:22,079 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:02:22,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:02:22,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:02:22,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:02:22,102 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 3 states. [2019-11-28 21:02:22,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:02:22,167 INFO L93 Difference]: Finished difference Result 106 states and 150 transitions. [2019-11-28 21:02:22,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:02:22,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 150 transitions. [2019-11-28 21:02:22,175 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2019-11-28 21:02:22,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 99 states and 142 transitions. [2019-11-28 21:02:22,183 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2019-11-28 21:02:22,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2019-11-28 21:02:22,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 142 transitions. [2019-11-28 21:02:22,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:02:22,187 INFO L688 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2019-11-28 21:02:22,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 142 transitions. [2019-11-28 21:02:22,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-11-28 21:02:22,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-28 21:02:22,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2019-11-28 21:02:22,226 INFO L711 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2019-11-28 21:02:22,227 INFO L591 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2019-11-28 21:02:22,227 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:02:22,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 142 transitions. [2019-11-28 21:02:22,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2019-11-28 21:02:22,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:22,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:22,231 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:22,231 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:22,232 INFO L794 eck$LassoCheckResult]: Stem: 315#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 232#L-1 havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 233#L431 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 235#L439 main_#t~ret36 := valid_product_#res;main_~tmp~3 := main_#t~ret36;havoc main_#t~ret36; 227#L533 assume 0 != main_~tmp~3; 228#L507 ~methAndRunningLastTime~0 := 0; 254#L931 havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 251#L942-1 [2019-11-28 21:02:22,232 INFO L796 eck$LassoCheckResult]: Loop: 251#L942-1 assume !false; 255#L653 assume test_~splverifierCounter~0 < 4; 221#L654 test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 222#L662 assume !(0 != test_~tmp~4); 239#L662-1 test_~tmp___0~0 := test_#t~nondet48;havoc test_#t~nondet48; 240#L672 assume !(0 != test_~tmp___0~0); 242#L672-1 test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 294#L682 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 319#L690-2 assume !(0 != ~pumpRunning~0); 234#L720 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 229#L778 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret51, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 230#L752-1 assume !(0 != ~pumpRunning~0); 274#L727 havoc __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 268#L595-1 __utac_acc__Specification2_spec__2_#t~ret72 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret72;havoc __utac_acc__Specification2_spec__2_#t~ret72; 249#L942 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 251#L942-1 [2019-11-28 21:02:22,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:22,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:02:22,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:22,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514048856] [2019-11-28 21:02:22,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:22,336 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:22,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:22,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1698133379, now seen corresponding path program 1 times [2019-11-28 21:02:22,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:22,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946837609] [2019-11-28 21:02:22,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:22,360 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:22,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:22,361 INFO L82 PathProgramCache]: Analyzing trace with hash 235891831, now seen corresponding path program 1 times [2019-11-28 21:02:22,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:22,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554814730] [2019-11-28 21:02:22,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:22,501 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:52,172 WARN L192 SmtUtils]: Spent 29.49 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:03:06,240 WARN L192 SmtUtils]: Spent 14.05 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:03:06,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:03:06 BoogieIcfgContainer [2019-11-28 21:03:06,334 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:03:06,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:03:06,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:03:06,336 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:03:06,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:21" (3/4) ... [2019-11-28 21:03:06,340 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:03:06,409 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:03:06,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:03:06,412 INFO L168 Benchmark]: Toolchain (without parser) took 46750.33 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.2 MB). Free memory was 959.0 MB in the beginning and 1.2 GB in the end (delta: -285.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:06,412 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:03:06,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:06,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.76 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 21:03:06,422 INFO L168 Benchmark]: Boogie Preprocessor took 45.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:03:06,423 INFO L168 Benchmark]: RCFGBuilder took 895.69 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: 64.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:06,424 INFO L168 Benchmark]: BuchiAutomizer took 44930.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -194.1 MB). Peak memory consumption was 360.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:06,424 INFO L168 Benchmark]: Witness Printer took 74.44 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:03:06,434 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 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 722.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.76 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 45.92 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 895.69 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: 64.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44930.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -194.1 MB). Peak memory consumption was 360.3 MB. Max. memory is 11.5 GB. * Witness Printer took 74.44 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. 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 99 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 44.6s. 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 99 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 147 SDtfs, 147 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: 652]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=718} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=718, NULL=2375, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36229f06=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59d0fa71=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e6bf5e1=0, NULL=0, NULL=2368, NULL=0, NULL=12283, NULL=12719, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@660065af=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3916db28=0, tmp=0, NULL=0, NULL=0, NULL=2361, tmp___1=0, NULL=12720, NULL=2364, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e960205=0, NULL=2362, NULL=2365, cleanupTimeShifts=4, NULL=2372, NULL=2366, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=12722, retValue_acc=0, NULL=2374, tmp___0=0, NULL=12717, NULL=0, NULL=0, \result=1, NULL=2358, head=0, pumpRunning=0, \result=0, NULL=2360, tmp=1, NULL=0, NULL=12721, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@450aa396=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15b3e5c0=0, NULL=0, retValue_acc=1, NULL=2371, tmp___2=54, NULL=2367, tmp___0=0, splverifierCounter=0, methAndRunningLastTime=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b27fc56=0, NULL=2376, head=0, NULL=0, NULL=2359, tmp=0, NULL=12718, NULL=0, NULL=2373, NULL=0, NULL=0, NULL=2370, NULL=12291, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L552] int waterLevel = 1; [L553] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L925] int methAndRunningLastTime ; [L524] int retValue_acc ; [L525] int tmp ; [L435] int retValue_acc ; [L438] retValue_acc = 1 [L439] return (retValue_acc); [L531] tmp = valid_product() [L533] COND TRUE \read(tmp) [L930] methAndRunningLastTime = 0 [L643] int splverifierCounter ; [L644] int tmp ; [L645] int tmp___0 ; [L646] int tmp___1 ; [L647] int tmp___2 ; [L650] splverifierCounter = 0 Loop: [L652] COND TRUE 1 [L654] COND TRUE splverifierCounter < 4 [L660] tmp = __VERIFIER_nondet_int() [L662] COND FALSE !(\read(tmp)) [L670] tmp___0 = __VERIFIER_nondet_int() [L672] COND FALSE !(\read(tmp___0)) [L680] tmp___2 = __VERIFIER_nondet_int() [L682] COND TRUE \read(tmp___2) [L911] systemActive = 1 [L720] COND FALSE !(\read(pumpRunning)) [L727] COND TRUE \read(systemActive) [L775] int tmp ; [L778] COND FALSE !(\read(pumpRunning)) [L749] int tmp ; [L752] COND FALSE !(\read(pumpRunning)) [L935] int tmp ; [L936] int tmp___0 ; [L591] int retValue_acc ; [L594] retValue_acc = methaneLevelCritical [L595] return (retValue_acc); [L940] tmp = isMethaneLevelCritical() [L942] COND FALSE !(\read(tmp)) [L958] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...