./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product52_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product52_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer --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 9fc6dbbcfa33ba532c22e3e2a2682304ea7cf29d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-08 15:24:45,444 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:24:45,445 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:24:45,452 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:24:45,452 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:24:45,453 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:24:45,453 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:24:45,455 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:24:45,456 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:24:45,456 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:24:45,457 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:24:45,457 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:24:45,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:24:45,459 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:24:45,459 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:24:45,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:24:45,461 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:24:45,462 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:24:45,463 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:24:45,464 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:24:45,465 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:24:45,466 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:24:45,467 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:24:45,468 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:24:45,468 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:24:45,468 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:24:45,469 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:24:45,470 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:24:45,470 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:24:45,471 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:24:45,471 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:24:45,472 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:24:45,472 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:24:45,472 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:24:45,473 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:24:45,473 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:24:45,473 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-08 15:24:45,484 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:24:45,484 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:24:45,485 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 15:24:45,485 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 15:24:45,485 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 15:24:45,485 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 15:24:45,486 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 15:24:45,486 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 15:24:45,486 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 15:24:45,486 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 15:24:45,486 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 15:24:45,486 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:24:45,486 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:24:45,486 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 15:24:45,486 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 15:24:45,487 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:24:45,487 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:24:45,487 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 15:24:45,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 15:24:45,487 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 15:24:45,487 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:24:45,487 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:24:45,487 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 15:24:45,488 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 15:24:45,488 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 15:24:45,488 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:24:45,488 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:24:45,488 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 15:24:45,488 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:24:45,488 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 15:24:45,488 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 15:24:45,489 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 15:24:45,489 INFO L133 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer 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 -> 9fc6dbbcfa33ba532c22e3e2a2682304ea7cf29d [2018-12-08 15:24:45,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:24:45,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:24:45,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:24:45,523 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:24:45,523 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:24:45,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product52_true-unreach-call_false-termination.cil.c [2018-12-08 15:24:45,564 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/data/9e2381d9b/63fe221be02c4364975de5e4bf1d857b/FLAG237aa0ca5 [2018-12-08 15:24:45,968 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:24:45,968 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/sv-benchmarks/c/product-lines/minepump_spec5_product52_true-unreach-call_false-termination.cil.c [2018-12-08 15:24:45,975 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/data/9e2381d9b/63fe221be02c4364975de5e4bf1d857b/FLAG237aa0ca5 [2018-12-08 15:24:45,983 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/data/9e2381d9b/63fe221be02c4364975de5e4bf1d857b [2018-12-08 15:24:45,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:24:45,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:24:45,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:24:45,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:24:45,988 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:24:45,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:24:45" (1/1) ... [2018-12-08 15:24:45,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:45, skipping insertion in model container [2018-12-08 15:24:45,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:24:45" (1/1) ... [2018-12-08 15:24:45,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:24:46,018 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:24:46,177 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:24:46,218 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:24:46,267 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:24:46,282 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:24:46,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46 WrapperNode [2018-12-08 15:24:46,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:24:46,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:24:46,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:24:46,283 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:24:46,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... [2018-12-08 15:24:46,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... [2018-12-08 15:24:46,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:24:46,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:24:46,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:24:46,318 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:24:46,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... [2018-12-08 15:24:46,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... [2018-12-08 15:24:46,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... [2018-12-08 15:24:46,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... [2018-12-08 15:24:46,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... [2018-12-08 15:24:46,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... [2018-12-08 15:24:46,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... [2018-12-08 15:24:46,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:24:46,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:24:46,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:24:46,340 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:24:46,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/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 [2018-12-08 15:24:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 15:24:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 15:24:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:24:46,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:24:46,717 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:24:46,717 INFO L280 CfgBuilder]: Removed 176 assue(true) statements. [2018-12-08 15:24:46,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:24:46 BoogieIcfgContainer [2018-12-08 15:24:46,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:24:46,717 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 15:24:46,717 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 15:24:46,720 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 15:24:46,720 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 15:24:46,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 03:24:45" (1/3) ... [2018-12-08 15:24:46,721 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56f95e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 03:24:46, skipping insertion in model container [2018-12-08 15:24:46,721 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 15:24:46,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:24:46" (2/3) ... [2018-12-08 15:24:46,721 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56f95e86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 03:24:46, skipping insertion in model container [2018-12-08 15:24:46,721 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 15:24:46,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:24:46" (3/3) ... [2018-12-08 15:24:46,722 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product52_true-unreach-call_false-termination.cil.c [2018-12-08 15:24:46,753 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 15:24:46,753 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 15:24:46,753 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 15:24:46,754 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 15:24:46,754 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:24:46,754 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:24:46,754 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 15:24:46,754 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:24:46,754 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 15:24:46,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2018-12-08 15:24:46,779 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2018-12-08 15:24:46,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 15:24:46,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 15:24:46,784 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:46,784 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:46,784 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 15:24:46,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states. [2018-12-08 15:24:46,787 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2018-12-08 15:24:46,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 15:24:46,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 15:24:46,788 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:46,788 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:46,791 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(13);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 9#L-1true havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 16#L998true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 21#L1006true main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 86#L498true assume 0 != main_~tmp~3; 42#L469true ~switchedOnBeforeTS~0 := 0; 75#L529true havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 112#L550-1true [2018-12-08 15:24:46,791 INFO L796 eck$LassoCheckResult]: Loop: 112#L550-1true assume !false; 122#L693true assume test_~splverifierCounter~0 < 4; 80#L694true test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 81#L702true assume !(0 != test_~tmp~5); 82#L702-1true test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 125#L712true assume !(0 != test_~tmp___0~1); 126#L712-1true test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 51#L722true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 62#L730-1true havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 28#L874true __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 109#L539true assume !(0 != ~pumpRunning~0); 77#L763true assume !(0 != ~systemActive~0); 118#L770true havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 96#L652true __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 108#L550true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 112#L550-1true [2018-12-08 15:24:46,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:46,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-12-08 15:24:46,796 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:24:46,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:24:46,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:46,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:24:46,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:46,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:46,917 INFO L82 PathProgramCache]: Analyzing trace with hash 677042294, now seen corresponding path program 1 times [2018-12-08 15:24:46,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:24:46,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:24:46,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:46,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:24:46,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:24:46,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:24:46,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:24:46,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:24:46,955 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 15:24:46,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:24:46,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:24:46,966 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2018-12-08 15:24:47,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:24:47,011 INFO L93 Difference]: Finished difference Result 243 states and 353 transitions. [2018-12-08 15:24:47,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:24:47,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 353 transitions. [2018-12-08 15:24:47,015 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2018-12-08 15:24:47,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 229 states and 338 transitions. [2018-12-08 15:24:47,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 229 [2018-12-08 15:24:47,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 229 [2018-12-08 15:24:47,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 229 states and 338 transitions. [2018-12-08 15:24:47,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 15:24:47,022 INFO L705 BuchiCegarLoop]: Abstraction has 229 states and 338 transitions. [2018-12-08 15:24:47,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states and 338 transitions. [2018-12-08 15:24:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2018-12-08 15:24:47,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-12-08 15:24:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 335 transitions. [2018-12-08 15:24:47,047 INFO L728 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2018-12-08 15:24:47,047 INFO L608 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2018-12-08 15:24:47,047 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 15:24:47,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states and 335 transitions. [2018-12-08 15:24:47,049 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 156 [2018-12-08 15:24:47,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 15:24:47,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 15:24:47,049 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:47,049 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:47,050 INFO L794 eck$LassoCheckResult]: Stem: 479#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(13);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 389#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 390#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 403#L1006 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 409#L498 assume 0 != main_~tmp~3; 433#L469 ~switchedOnBeforeTS~0 := 0; 434#L529 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 472#L550-1 [2018-12-08 15:24:47,050 INFO L796 eck$LassoCheckResult]: Loop: 472#L550-1 assume !false; 548#L693 assume test_~splverifierCounter~0 < 4; 546#L694 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 544#L702 assume !(0 != test_~tmp~5); 541#L702-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 540#L712 assume !(0 != test_~tmp___0~1); 530#L712-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 528#L722 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 450#L730-1 havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 417#L874 __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 418#L539 assume !(0 != ~pumpRunning~0); 473#L763 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 474#L821 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 560#L795-1 assume !(0 == ~pumpRunning~0); 555#L770 havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 554#L652 __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 552#L550 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 472#L550-1 [2018-12-08 15:24:47,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:47,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-12-08 15:24:47,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:24:47,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:24:47,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:24:47,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:47,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:47,088 INFO L82 PathProgramCache]: Analyzing trace with hash -543108204, now seen corresponding path program 1 times [2018-12-08 15:24:47,088 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:24:47,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:24:47,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,089 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 15:24:47,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:24:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:24:47,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:24:47,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:24:47,097 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 15:24:47,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:24:47,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:24:47,098 INFO L87 Difference]: Start difference. First operand 227 states and 335 transitions. cyclomatic complexity: 111 Second operand 3 states. [2018-12-08 15:24:47,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:24:47,154 INFO L93 Difference]: Finished difference Result 326 states and 457 transitions. [2018-12-08 15:24:47,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:24:47,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 457 transitions. [2018-12-08 15:24:47,157 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2018-12-08 15:24:47,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 326 states and 457 transitions. [2018-12-08 15:24:47,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2018-12-08 15:24:47,159 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2018-12-08 15:24:47,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 457 transitions. [2018-12-08 15:24:47,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 15:24:47,160 INFO L705 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2018-12-08 15:24:47,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 457 transitions. [2018-12-08 15:24:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2018-12-08 15:24:47,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2018-12-08 15:24:47,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 457 transitions. [2018-12-08 15:24:47,170 INFO L728 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2018-12-08 15:24:47,170 INFO L608 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2018-12-08 15:24:47,170 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 15:24:47,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 457 transitions. [2018-12-08 15:24:47,171 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2018-12-08 15:24:47,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 15:24:47,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 15:24:47,172 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:47,172 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:47,172 INFO L794 eck$LassoCheckResult]: Stem: 1043#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(13);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 948#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 949#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 962#L1006 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 968#L498 assume 0 != main_~tmp~3; 993#L469 ~switchedOnBeforeTS~0 := 0; 994#L529 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 945#L550-1 [2018-12-08 15:24:47,172 INFO L796 eck$LassoCheckResult]: Loop: 945#L550-1 assume !false; 1073#L693 assume test_~splverifierCounter~0 < 4; 1040#L694 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 1041#L702 assume !(0 != test_~tmp~5); 1036#L702-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 1042#L712 assume !(0 != test_~tmp___0~1); 979#L712-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 1008#L722 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1010#L730-1 havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 1150#L874 __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 1070#L539 assume !(0 != ~pumpRunning~0); 1037#L763 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1033#L821 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1034#L795-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1066#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 938#L665-1 isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; 939#L923-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 992#L923-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 974#L929-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 975#L799-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 999#L770 havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1058#L652 __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 1059#L550 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 945#L550-1 [2018-12-08 15:24:47,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:47,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-12-08 15:24:47,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:24:47,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:24:47,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:24:47,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:47,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:47,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1971117568, now seen corresponding path program 1 times [2018-12-08 15:24:47,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:24:47,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:24:47,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,204 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 15:24:47,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:24:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:24:47,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:24:47,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 15:24:47,221 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-08 15:24:47,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 15:24:47,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 15:24:47,222 INFO L87 Difference]: Start difference. First operand 326 states and 457 transitions. cyclomatic complexity: 134 Second operand 5 states. [2018-12-08 15:24:47,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:24:47,343 INFO L93 Difference]: Finished difference Result 902 states and 1237 transitions. [2018-12-08 15:24:47,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 15:24:47,343 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 902 states and 1237 transitions. [2018-12-08 15:24:47,347 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 599 [2018-12-08 15:24:47,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 902 states to 902 states and 1237 transitions. [2018-12-08 15:24:47,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 902 [2018-12-08 15:24:47,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 902 [2018-12-08 15:24:47,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 902 states and 1237 transitions. [2018-12-08 15:24:47,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 15:24:47,353 INFO L705 BuchiCegarLoop]: Abstraction has 902 states and 1237 transitions. [2018-12-08 15:24:47,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states and 1237 transitions. [2018-12-08 15:24:47,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 645. [2018-12-08 15:24:47,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2018-12-08 15:24:47,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 879 transitions. [2018-12-08 15:24:47,365 INFO L728 BuchiCegarLoop]: Abstraction has 645 states and 879 transitions. [2018-12-08 15:24:47,366 INFO L608 BuchiCegarLoop]: Abstraction has 645 states and 879 transitions. [2018-12-08 15:24:47,366 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 15:24:47,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 645 states and 879 transitions. [2018-12-08 15:24:47,368 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 462 [2018-12-08 15:24:47,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 15:24:47,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 15:24:47,368 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:47,368 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:24:47,369 INFO L794 eck$LassoCheckResult]: Stem: 2288#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string40.base, #t~string40.offset := #Ultimate.alloc(13);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string42.base, #t~string42.offset, 1);call write~init~int(77, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(101, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(116, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(104, #t~string42.base, 4 + #t~string42.offset, 1);call write~init~int(58, #t~string42.base, 5 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 6 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string44.base, #t~string44.offset, 1);call write~init~int(82, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(73, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(84, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 4 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(75, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string48.base, #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 1 + #t~string48.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string57.base, #t~string57.offset := #Ultimate.alloc(13);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(80, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(117, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(109, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(112, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(110, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(102, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 3 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(32, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string71.base, #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 1 + #t~string71.offset, 1); 2192#L-1 havoc main_#res;havoc main_#t~ret35, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2193#L998 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 2206#L1006 main_#t~ret35 := valid_product_#res;main_~tmp~3 := main_#t~ret35;havoc main_#t~ret35; 2212#L498 assume 0 != main_~tmp~3; 2237#L469 ~switchedOnBeforeTS~0 := 0; 2238#L529 havoc test_#t~nondet49, test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2189#L550-1 [2018-12-08 15:24:47,369 INFO L796 eck$LassoCheckResult]: Loop: 2189#L550-1 assume !false; 2312#L693 assume test_~splverifierCounter~0 < 4; 2284#L694 test_~tmp~5 := test_#t~nondet49;havoc test_#t~nondet49; 2285#L702 assume !(0 != test_~tmp~5); 2286#L702-1 test_~tmp___0~1 := test_#t~nondet50;havoc test_#t~nondet50; 2287#L712 assume !(0 != test_~tmp___0~1); 2223#L712-1 test_~tmp___2~0 := test_#t~nondet51;havoc test_#t~nondet51; 2252#L722 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2254#L730-1 havoc __utac_acc__Specification5_spec__2_#t~ret36;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 2220#L874 __utac_acc__Specification5_spec__2_#t~ret36 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret36;havoc __utac_acc__Specification5_spec__2_#t~ret36; 2221#L539 assume !(0 != ~pumpRunning~0); 2280#L763 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret54, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2276#L821 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret53, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2277#L795-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret72, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2308#L660-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2182#L665-1 isHighWaterLevel_#t~ret72 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret72;havoc isHighWaterLevel_#t~ret72; 2183#L923-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 2236#L923-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 2218#L929-1 processEnvironment__wrappee__highWaterSensor_#t~ret53 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret53;havoc processEnvironment__wrappee__highWaterSensor_#t~ret53; 2219#L799-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 2243#L770 havoc __utac_acc__Specification5_spec__3_#t~ret37, __utac_acc__Specification5_spec__3_#t~ret38, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 2299#L652 __utac_acc__Specification5_spec__3_#t~ret37 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret37;havoc __utac_acc__Specification5_spec__3_#t~ret37; 2300#L550 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 2194#L874-1 __utac_acc__Specification5_spec__3_#t~ret38 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret38;havoc __utac_acc__Specification5_spec__3_#t~ret38; 2195#L554 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 2189#L550-1 [2018-12-08 15:24:47,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:47,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2018-12-08 15:24:47,369 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:24:47,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:24:47,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:24:47,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:47,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:47,393 INFO L82 PathProgramCache]: Analyzing trace with hash -163417157, now seen corresponding path program 1 times [2018-12-08 15:24:47,393 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:24:47,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:24:47,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,394 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 15:24:47,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:47,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:24:47,402 INFO L82 PathProgramCache]: Analyzing trace with hash -226843339, now seen corresponding path program 1 times [2018-12-08 15:24:47,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:24:47,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:24:47,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:24:47,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:24:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:24:52,759 WARN L180 SmtUtils]: Spent 5.18 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-12-08 15:24:55,367 WARN L180 SmtUtils]: Spent 2.61 s on a formula simplification that was a NOOP. DAG size: 425 [2018-12-08 15:24:55,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 03:24:55 BoogieIcfgContainer [2018-12-08 15:24:55,401 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 15:24:55,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:24:55,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:24:55,402 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:24:55,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:24:46" (3/4) ... [2018-12-08 15:24:55,404 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-08 15:24:55,434 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8ab3f301-d548-454c-9098-06ca470faed2/bin-2019/uautomizer/witness.graphml [2018-12-08 15:24:55,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:24:55,435 INFO L168 Benchmark]: Toolchain (without parser) took 9449.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -173.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:55,435 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:24:55,436 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:55,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:55,436 INFO L168 Benchmark]: Boogie Preprocessor took 21.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:55,436 INFO L168 Benchmark]: RCFGBuilder took 377.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:55,436 INFO L168 Benchmark]: BuchiAutomizer took 8684.15 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -103.0 MB). Peak memory consumption was 250.4 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:55,437 INFO L168 Benchmark]: Witness Printer took 32.73 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-12-08 15:24:55,438 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 377.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8684.15 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -103.0 MB). Peak memory consumption was 250.4 MB. Max. memory is 11.5 GB. * Witness Printer took 32.73 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 645 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 8.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 259 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 645 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 613 SDtfs, 861 SDslu, 835 SDs, 0 SdLazy, 145 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 692]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=34, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2969641a=0, NULL=27, NULL=0, NULL=0, NULL=35, NULL=0, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28adee51=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72f67a41=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7264f3c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36dd760a=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ad32b71=0, tmp___0=0, NULL=0, NULL=0, tmp=0, tmp=1, NULL=0, tmp___1=0, NULL=33, NULL=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a3ad496=0, NULL=23, NULL=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26086289=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=38, NULL=20, tmp=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=14, \result=1, NULL=0, NULL=0, \result=0, NULL=29, NULL=0, tmp___0=0, \result=1, NULL=24, head=0, pumpRunning=0, NULL=28, \result=0, retValue_acc=1, NULL=31, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3113203a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13237726=0, \result=1, NULL=26, NULL=37, NULL=22, NULL=19, NULL=0, retValue_acc=0, tmp=1, tmp___2=56, NULL=17, tmp___0=0, retValue_acc=1, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4737c84b=0, NULL=12, head=0, NULL=0, NULL=8, NULL=18, NULL=0, NULL=36, tmp=0, NULL=0, NULL=0, NULL=16, retValue_acc=0, NULL=0, NULL=39} - 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; [L406] int cleanupTimeShifts = 4; [L523] int switchedOnBeforeTS ; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L753] int pumpRunning = 0; [L754] int systemActive = 1; [L489] int retValue_acc ; [L490] int tmp ; [L1002] int retValue_acc ; [L1005] retValue_acc = 1 [L1006] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L528] switchedOnBeforeTS = 0 [L683] int splverifierCounter ; [L684] int tmp ; [L685] int tmp___0 ; [L686] int tmp___1 ; [L687] int tmp___2 ; [L690] splverifierCounter = 0 Loop: [L692] COND TRUE 1 [L694] COND TRUE splverifierCounter < 4 [L700] tmp = __VERIFIER_nondet_int() [L702] COND FALSE !(\read(tmp)) [L710] tmp___0 = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp___0)) [L720] tmp___2 = __VERIFIER_nondet_int() [L722] COND TRUE \read(tmp___2) [L971] systemActive = 1 [L870] int retValue_acc ; [L873] retValue_acc = pumpRunning [L874] return (retValue_acc); [L537] switchedOnBeforeTS = isPumpRunning() [L763] COND FALSE !(\read(pumpRunning)) [L770] COND TRUE \read(systemActive) [L818] int tmp ; [L821] COND FALSE !(\read(pumpRunning)) [L792] int tmp ; [L795] COND TRUE ! pumpRunning [L915] int retValue_acc ; [L916] int tmp ; [L917] int tmp___0 ; [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L921] tmp = isHighWaterSensorDry() [L923] COND TRUE \read(tmp) [L924] tmp___0 = 0 [L928] retValue_acc = tmp___0 [L929] return (retValue_acc); [L797] tmp = isHighWaterLevel() [L799] COND FALSE !(\read(tmp)) [L543] int tmp ; [L544] int tmp___0 ; [L648] int retValue_acc ; [L651] retValue_acc = waterLevel [L652] return (retValue_acc); [L548] tmp = getWaterLevel() [L550] COND TRUE tmp != 2 [L870] int retValue_acc ; [L873] retValue_acc = pumpRunning [L874] return (retValue_acc); [L552] tmp___0 = isPumpRunning() [L554] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...