./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/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 1e304dec1a19556a559249c7b1ef76290bc8b678 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:30:19,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:30:19,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:30:19,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:30:19,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:30:19,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:30:19,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:30:19,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:30:19,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:30:19,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:30:19,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:30:19,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:30:19,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:30:19,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:30:19,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:30:19,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:30:19,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:30:19,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:30:19,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:30:19,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:30:19,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:30:19,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:30:19,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:30:19,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:30:19,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:30:19,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:30:19,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:30:19,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:30:19,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:30:19,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:30:19,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:30:19,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:30:19,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:30:19,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:30:19,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:30:19,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:30:19,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:30:19,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:30:19,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:30:19,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:30:19,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:30:19,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 20:30:19,502 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:30:19,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:30:19,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:30:19,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:30:19,510 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:30:19,511 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:30:19,511 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:30:19,511 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:30:19,512 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:30:19,512 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:30:19,512 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:30:19,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:30:19,513 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:30:19,513 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:30:19,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:30:19,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:30:19,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:30:19,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:30:19,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:30:19,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:30:19,516 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:30:19,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:30:19,516 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:30:19,517 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:30:19,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:30:19,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:30:19,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:30:19,518 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:30:19,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:30:19,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:30:19,519 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:30:19,519 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:30:19,520 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/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 -> 1e304dec1a19556a559249c7b1ef76290bc8b678 [2019-11-15 20:30:19,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:30:19,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:30:19,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:30:19,569 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:30:19,569 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:30:19,570 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-11-15 20:30:19,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/data/a75269339/8549b72bb90f4dfa9e453a5e712005a8/FLAGd6e9bd5d0 [2019-11-15 20:30:20,267 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:30:20,267 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-11-15 20:30:20,284 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/data/a75269339/8549b72bb90f4dfa9e453a5e712005a8/FLAGd6e9bd5d0 [2019-11-15 20:30:20,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/data/a75269339/8549b72bb90f4dfa9e453a5e712005a8 [2019-11-15 20:30:20,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:30:20,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:30:20,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:30:20,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:30:20,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:30:20,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:30:20" (1/1) ... [2019-11-15 20:30:20,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e77d902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:20, skipping insertion in model container [2019-11-15 20:30:20,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:30:20" (1/1) ... [2019-11-15 20:30:20,588 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:30:20,660 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:30:21,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:30:21,153 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:30:21,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:30:21,338 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:30:21,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21 WrapperNode [2019-11-15 20:30:21,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:30:21,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:30:21,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:30:21,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:30:21,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... [2019-11-15 20:30:21,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... [2019-11-15 20:30:21,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:30:21,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:30:21,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:30:21,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:30:21,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... [2019-11-15 20:30:21,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... [2019-11-15 20:30:21,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... [2019-11-15 20:30:21,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... [2019-11-15 20:30:21,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... [2019-11-15 20:30:21,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... [2019-11-15 20:30:21,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... [2019-11-15 20:30:21,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:30:21,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:30:21,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:30:21,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:30:21,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/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 [2019-11-15 20:30:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:30:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 20:30:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:30:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:30:22,624 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:30:22,624 INFO L284 CfgBuilder]: Removed 122 assume(true) statements. [2019-11-15 20:30:22,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:30:22 BoogieIcfgContainer [2019-11-15 20:30:22,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:30:22,626 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:30:22,626 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:30:22,630 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:30:22,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:30:22,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:30:20" (1/3) ... [2019-11-15 20:30:22,633 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2702699b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:30:22, skipping insertion in model container [2019-11-15 20:30:22,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:30:22,645 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:30:21" (2/3) ... [2019-11-15 20:30:22,645 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2702699b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:30:22, skipping insertion in model container [2019-11-15 20:30:22,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:30:22,645 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:30:22" (3/3) ... [2019-11-15 20:30:22,647 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2019-11-15 20:30:22,719 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:30:22,719 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:30:22,720 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:30:22,720 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:30:22,720 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:30:22,720 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:30:22,720 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:30:22,721 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:30:22,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states. [2019-11-15 20:30:22,773 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2019-11-15 20:30:22,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:30:22,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:30:22,784 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:22,784 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:22,784 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:30:22,785 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states. [2019-11-15 20:30:22,791 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2019-11-15 20:30:22,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:30:22,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:30:22,793 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:22,793 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:22,800 INFO L791 eck$LassoCheckResult]: Stem: 52#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25); 8#L-1true havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 43#L351true 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; 56#L359true main_#t~ret25 := valid_product_#res;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; 81#L448true assume 0 != main_~tmp~4; 89#L423true ~methAndRunningLastTime~0 := 0; 9#L468true havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 13#L479-1true [2019-11-15 20:30:22,801 INFO L793 eck$LassoCheckResult]: Loop: 13#L479-1true assume !false; 59#L66true assume test_~splverifierCounter~0 < 4; 79#L67true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 87#L75true assume !(0 != test_~tmp~0); 85#L75-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 76#L85true assume !(0 != test_~tmp___0~0); 44#L85-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 48#L95true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 33#L103-1true assume !(0 != ~pumpRunning~0); 78#L140true assume !(0 != ~systemActive~0); 40#L147true havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;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; 41#L545-1true __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 46#L479true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 13#L479-1true [2019-11-15 20:30:22,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:22,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-15 20:30:22,817 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:22,818 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569817567] [2019-11-15 20:30:22,818 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:22,819 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:22,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:23,852 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:30:23,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:23,854 INFO L82 PathProgramCache]: Analyzing trace with hash 12634836, now seen corresponding path program 1 times [2019-11-15 20:30:23,854 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:23,855 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952120691] [2019-11-15 20:30:23,855 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:23,855 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:23,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:23,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:30:23,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952120691] [2019-11-15 20:30:23,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:30:23,916 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:30:23,916 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278080539] [2019-11-15 20:30:23,921 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 20:30:23,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:23,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:30:23,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:30:23,942 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 3 states. [2019-11-15 20:30:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:24,042 INFO L93 Difference]: Finished difference Result 173 states and 247 transitions. [2019-11-15 20:30:24,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:30:24,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 173 states and 247 transitions. [2019-11-15 20:30:24,055 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 110 [2019-11-15 20:30:24,065 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 173 states to 159 states and 232 transitions. [2019-11-15 20:30:24,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2019-11-15 20:30:24,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2019-11-15 20:30:24,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 232 transitions. [2019-11-15 20:30:24,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:30:24,071 INFO L688 BuchiCegarLoop]: Abstraction has 159 states and 232 transitions. [2019-11-15 20:30:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 232 transitions. [2019-11-15 20:30:24,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2019-11-15 20:30:24,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-15 20:30:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 229 transitions. [2019-11-15 20:30:24,141 INFO L711 BuchiCegarLoop]: Abstraction has 157 states and 229 transitions. [2019-11-15 20:30:24,141 INFO L591 BuchiCegarLoop]: Abstraction has 157 states and 229 transitions. [2019-11-15 20:30:24,142 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 20:30:24,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 157 states and 229 transitions. [2019-11-15 20:30:24,146 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 108 [2019-11-15 20:30:24,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:30:24,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:30:24,148 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:24,148 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:24,148 INFO L791 eck$LassoCheckResult]: Stem: 349#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25); 282#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 283#L351 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; 339#L359 main_#t~ret25 := valid_product_#res;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; 354#L448 assume 0 != main_~tmp~4; 377#L423 ~methAndRunningLastTime~0 := 0; 284#L468 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 285#L479-1 [2019-11-15 20:30:24,149 INFO L793 eck$LassoCheckResult]: Loop: 285#L479-1 assume !false; 389#L66 assume test_~splverifierCounter~0 < 4; 374#L67 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 375#L75 assume !(0 != test_~tmp~0); 351#L75-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 379#L85 assume !(0 != test_~tmp___0~0); 340#L85-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 341#L95 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 345#L103-1 assume !(0 != ~pumpRunning~0); 372#L140 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 373#L172 assume !(0 == ~pumpRunning~0); 395#L147 havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;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; 394#L545-1 __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 392#L479 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 285#L479-1 [2019-11-15 20:30:24,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:24,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-15 20:30:24,150 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:24,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627953145] [2019-11-15 20:30:24,150 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:24,151 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:24,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:24,613 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:30:24,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:24,614 INFO L82 PathProgramCache]: Analyzing trace with hash 349910497, now seen corresponding path program 1 times [2019-11-15 20:30:24,614 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:24,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229503149] [2019-11-15 20:30:24,615 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:24,615 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:24,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:30:24,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:30:24,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229503149] [2019-11-15 20:30:24,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:30:24,633 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:30:24,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789648649] [2019-11-15 20:30:24,634 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-15 20:30:24,634 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:30:24,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:30:24,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:30:24,635 INFO L87 Difference]: Start difference. First operand 157 states and 229 transitions. cyclomatic complexity: 75 Second operand 3 states. [2019-11-15 20:30:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:30:24,755 INFO L93 Difference]: Finished difference Result 246 states and 347 transitions. [2019-11-15 20:30:24,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:30:24,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 347 transitions. [2019-11-15 20:30:24,762 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 175 [2019-11-15 20:30:24,766 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 246 states and 347 transitions. [2019-11-15 20:30:24,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 246 [2019-11-15 20:30:24,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 246 [2019-11-15 20:30:24,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 246 states and 347 transitions. [2019-11-15 20:30:24,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:30:24,771 INFO L688 BuchiCegarLoop]: Abstraction has 246 states and 347 transitions. [2019-11-15 20:30:24,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states and 347 transitions. [2019-11-15 20:30:24,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2019-11-15 20:30:24,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-11-15 20:30:24,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 347 transitions. [2019-11-15 20:30:24,792 INFO L711 BuchiCegarLoop]: Abstraction has 246 states and 347 transitions. [2019-11-15 20:30:24,793 INFO L591 BuchiCegarLoop]: Abstraction has 246 states and 347 transitions. [2019-11-15 20:30:24,793 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 20:30:24,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 347 transitions. [2019-11-15 20:30:24,796 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 175 [2019-11-15 20:30:24,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:30:24,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:30:24,803 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:24,803 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:30:24,804 INFO L791 eck$LassoCheckResult]: Stem: 757#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25); 693#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 694#L351 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; 753#L359 main_#t~ret25 := valid_product_#res;main_~tmp~4 := main_#t~ret25;havoc main_#t~ret25; 763#L448 assume 0 != main_~tmp~4; 783#L423 ~methAndRunningLastTime~0 := 0; 695#L468 havoc test_#t~nondet0, test_#t~nondet1, test_#t~nondet2, test_#t~nondet3, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 696#L479-1 [2019-11-15 20:30:24,804 INFO L793 eck$LassoCheckResult]: Loop: 696#L479-1 assume !false; 701#L66 assume test_~splverifierCounter~0 < 4; 779#L67 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 780#L75 assume !(0 != test_~tmp~0); 786#L75-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 787#L85 assume !(0 != test_~tmp___0~0); 848#L85-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 754#L95 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 730#L103-1 assume !(0 != ~pumpRunning~0); 731#L140 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 761#L172 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 762#L585 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 844#L590 isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; 843#L292 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 842#L292-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 788#L298 processEnvironment_#t~ret4 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; 724#L176 assume !(0 != processEnvironment_~tmp~1); 725#L147 havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~5, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~5;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; 743#L545-1 __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~5 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 853#L479 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5);~methAndRunningLastTime~0 := 0; 696#L479-1 [2019-11-15 20:30:24,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:24,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-15 20:30:24,805 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:24,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438408002] [2019-11-15 20:30:24,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:24,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:24,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:25,258 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:30:25,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:25,259 INFO L82 PathProgramCache]: Analyzing trace with hash -678068499, now seen corresponding path program 1 times [2019-11-15 20:30:25,260 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:25,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834483398] [2019-11-15 20:30:25,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:25,260 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:25,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:25,284 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:30:25,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:30:25,284 INFO L82 PathProgramCache]: Analyzing trace with hash 487508275, now seen corresponding path program 1 times [2019-11-15 20:30:25,285 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:30:25,285 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192040317] [2019-11-15 20:30:25,285 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:25,286 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:30:25,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:30:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:30:25,652 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:30:25,860 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-15 20:30:58,276 WARN L191 SmtUtils]: Spent 32.31 s on a formula simplification. DAG size of input: 455 DAG size of output: 453 [2019-11-15 20:31:13,658 WARN L191 SmtUtils]: Spent 15.37 s on a formula simplification that was a NOOP. DAG size: 451 [2019-11-15 20:31:13,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:31:13 BoogieIcfgContainer [2019-11-15 20:31:13,736 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:31:13,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:31:13,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:31:13,737 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:31:13,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:30:22" (3/4) ... [2019-11-15 20:31:13,742 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 20:31:13,813 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_39b31ebb-14aa-4ae8-ac09-c289f7482625/bin/uautomizer/witness.graphml [2019-11-15 20:31:13,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:31:13,815 INFO L168 Benchmark]: Toolchain (without parser) took 53255.99 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 346.0 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -254.7 MB). Peak memory consumption was 91.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:31:13,816 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:31:13,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:31:13,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.61 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. [2019-11-15 20:31:13,818 INFO L168 Benchmark]: Boogie Preprocessor took 79.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:31:13,818 INFO L168 Benchmark]: RCFGBuilder took 1097.38 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-15 20:31:13,820 INFO L168 Benchmark]: BuchiAutomizer took 51110.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -133.9 MB). Peak memory consumption was 379.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:31:13,820 INFO L168 Benchmark]: Witness Printer took 76.89 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:31:13,823 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 777.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 106.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1097.38 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 51110.02 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -133.9 MB). Peak memory consumption was 379.1 MB. Max. memory is 11.5 GB. * Witness Printer took 76.89 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 246 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 50.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 50.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 246 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 246 SDtfs, 224 SDslu, 170 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=-6, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3927f3af=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@702d9121=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53b00696=62, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41567af=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@172964aa=0, NULL=-21, methaneLevelCritical=0, NULL=-15, NULL=-24, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=-14, retValue_acc=0, NULL=0, NULL=-12, NULL=0, tmp___1=0, NULL=-19, NULL=0, NULL=-25, cleanupTimeShifts=4, tmp=0, NULL=-17, NULL=-9, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-23, NULL=0, NULL=-4, retValue_acc=0, NULL=0, NULL=-11, \result=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5370c0b1=0, NULL=-5, NULL=0, NULL=0, NULL=0, \result=1, NULL=-20, head=0, pumpRunning=0, retValue_acc=1, NULL=-3, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3676b695=0, tmp=1, NULL=-8, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-13, \result=1, retValue_acc=1, NULL=-10, NULL=-16, NULL=-18, tmp=1, tmp___2=62, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=-1, NULL=-2, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ec12be4=0, NULL=0, NULL=0, NULL=-22, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69855415=0, NULL=0, tmp=0, NULL=-7} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L364] int cleanupTimeShifts = 4; [L462] int methAndRunningLastTime ; [L502] int waterLevel = 1; [L503] int methaneLevelCritical = 0; [L765] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L439] int retValue_acc ; [L440] int tmp ; [L355] int retValue_acc ; [L358] retValue_acc = 1 [L359] return (retValue_acc); [L446] tmp = valid_product() [L448] COND TRUE \read(tmp) [L467] methAndRunningLastTime = 0 [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L321] systemActive = 1 [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L169] int tmp ; [L172] COND TRUE ! pumpRunning [L284] int retValue_acc ; [L285] int tmp ; [L286] int tmp___0 ; [L582] int retValue_acc ; [L585] COND TRUE waterLevel < 2 [L586] retValue_acc = 1 [L587] return (retValue_acc); [L290] tmp = isHighWaterSensorDry() [L292] COND TRUE \read(tmp) [L293] tmp___0 = 0 [L297] retValue_acc = tmp___0 [L298] return (retValue_acc); [L174] tmp = isHighWaterLevel() [L176] COND FALSE !(\read(tmp)) [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); [L477] tmp = isMethaneLevelCritical() [L479] COND FALSE !(\read(tmp)) [L495] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...