./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/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 75ad40de7ac44b78584ba916fa204e981921222d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-678e011 [2019-11-19 22:59:13,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:59:13,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:59:13,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:59:13,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:59:13,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:59:13,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:59:13,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:59:13,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:59:13,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:59:13,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:59:13,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:59:13,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:59:13,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:59:13,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:59:13,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:59:13,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:59:13,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:59:13,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:59:13,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:59:13,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:59:13,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:59:13,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:59:13,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:59:13,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:59:13,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:59:13,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:59:13,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:59:13,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:59:13,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:59:13,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:59:13,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:59:13,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:59:13,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:59:13,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:59:13,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:59:13,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:59:13,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:59:13,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:59:13,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:59:13,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:59:13,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:59:13,526 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:59:13,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:59:13,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:59:13,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:59:13,528 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:59:13,528 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:59:13,528 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:59:13,528 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:59:13,528 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:59:13,529 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:59:13,529 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:59:13,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:59:13,529 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:59:13,529 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:59:13,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:59:13,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:59:13,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:59:13,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:59:13,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:59:13,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:59:13,531 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:59:13,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:59:13,531 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:59:13,531 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:59:13,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:59:13,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:59:13,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:59:13,532 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:59:13,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:59:13,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:59:13,532 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:59:13,533 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:59:13,533 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_8b983838-23d1-4fe5-9419-ad4b644284a1/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 -> 75ad40de7ac44b78584ba916fa204e981921222d [2019-11-19 22:59:13,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:59:13,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:59:13,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:59:13,703 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:59:13,704 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:59:13,704 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-11-19 22:59:13,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/data/73fa4f566/bbfb61cf115c47348deadb9a96a6a0bb/FLAG98be57446 [2019-11-19 22:59:14,234 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:59:14,237 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2019-11-19 22:59:14,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/data/73fa4f566/bbfb61cf115c47348deadb9a96a6a0bb/FLAG98be57446 [2019-11-19 22:59:14,268 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/data/73fa4f566/bbfb61cf115c47348deadb9a96a6a0bb [2019-11-19 22:59:14,270 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:59:14,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:59:14,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:59:14,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:59:14,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:59:14,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d3b62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14, skipping insertion in model container [2019-11-19 22:59:14,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,284 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:59:14,320 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:59:14,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:59:14,682 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:59:14,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:59:14,780 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:59:14,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14 WrapperNode [2019-11-19 22:59:14,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:59:14,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:59:14,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:59:14,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:59:14,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:59:14,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:59:14,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:59:14,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:59:14,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... [2019-11-19 22:59:14,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:59:14,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:59:14,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:59:14,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:59:14,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/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 [2019-11-19 22:59:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:59:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 22:59:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:59:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:59:15,680 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:59:15,680 INFO L285 CfgBuilder]: Removed 106 assume(true) statements. [2019-11-19 22:59:15,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:59:15 BoogieIcfgContainer [2019-11-19 22:59:15,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:59:15,682 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:59:15,682 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:59:15,684 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:59:15,685 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:59:15,685 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:59:14" (1/3) ... [2019-11-19 22:59:15,687 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62809510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:59:15, skipping insertion in model container [2019-11-19 22:59:15,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:59:15,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:59:14" (2/3) ... [2019-11-19 22:59:15,687 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62809510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:59:15, skipping insertion in model container [2019-11-19 22:59:15,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:59:15,688 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:59:15" (3/3) ... [2019-11-19 22:59:15,689 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2019-11-19 22:59:15,735 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:59:15,735 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:59:15,736 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:59:15,748 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:59:15,755 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:59:15,755 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:59:15,755 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:59:15,755 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:59:15,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-11-19 22:59:15,814 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-19 22:59:15,814 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:59:15,814 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:59:15,821 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:59:15,821 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:59:15,821 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:59:15,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-11-19 22:59:15,833 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-19 22:59:15,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:59:15,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:59:15,834 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:59:15,834 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:59:15,838 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.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); 14#L-1true havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 61#L539true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 68#L547true main_#t~ret26 := valid_product_#res;main_~tmp~4 := main_#t~ret26;havoc main_#t~ret26; 3#L409true assume 0 != main_~tmp~4; 12#L383true 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; 63#L305-1true [2019-11-19 22:59:15,839 INFO L796 eck$LassoCheckResult]: Loop: 63#L305-1true assume !false; 62#L56true assume test_~splverifierCounter~0 < 4; 84#L57true test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 19#L65true assume !(0 != test_~tmp~0); 16#L65-1true test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 79#L75true assume !(0 != test_~tmp___0~0); 75#L75-1true test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 52#L85true assume 0 != test_~tmp___2~0; 4#L91-1true assume !(0 != ~pumpRunning~0); 35#L128true assume !(0 != ~systemActive~0); 9#L135true havoc __utac_acc__Specification3_spec__1_#t~ret23, __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 56#L466true __utac_acc__Specification3_spec__1_#t~ret23 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret23;havoc __utac_acc__Specification3_spec__1_#t~ret23; 18#L299true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 63#L305-1true [2019-11-19 22:59:15,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:15,845 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-19 22:59:15,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:15,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396253611] [2019-11-19 22:59:15,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:16,197 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:59:16,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:16,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941122, now seen corresponding path program 1 times [2019-11-19 22:59:16,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:16,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417668944] [2019-11-19 22:59:16,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:16,216 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:59:16,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:16,217 INFO L82 PathProgramCache]: Analyzing trace with hash 41337816, now seen corresponding path program 1 times [2019-11-19 22:59:16,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:16,217 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023957511] [2019-11-19 22:59:16,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:59:16,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:59:16,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023957511] [2019-11-19 22:59:16,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:59:16,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 22:59:16,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473060960] [2019-11-19 22:59:16,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:59:16,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:59:16,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:59:16,450 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 6 states. [2019-11-19 22:59:16,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:59:16,650 INFO L93 Difference]: Finished difference Result 216 states and 303 transitions. [2019-11-19 22:59:16,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:59:16,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 303 transitions. [2019-11-19 22:59:16,660 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 137 [2019-11-19 22:59:16,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 195 states and 282 transitions. [2019-11-19 22:59:16,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2019-11-19 22:59:16,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2019-11-19 22:59:16,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 282 transitions. [2019-11-19 22:59:16,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:59:16,673 INFO L688 BuchiCegarLoop]: Abstraction has 195 states and 282 transitions. [2019-11-19 22:59:16,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 282 transitions. [2019-11-19 22:59:16,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 123. [2019-11-19 22:59:16,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-11-19 22:59:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 177 transitions. [2019-11-19 22:59:16,727 INFO L711 BuchiCegarLoop]: Abstraction has 123 states and 177 transitions. [2019-11-19 22:59:16,727 INFO L591 BuchiCegarLoop]: Abstraction has 123 states and 177 transitions. [2019-11-19 22:59:16,727 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:59:16,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 177 transitions. [2019-11-19 22:59:16,735 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2019-11-19 22:59:16,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:59:16,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:59:16,737 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:59:16,737 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:59:16,737 INFO L794 eck$LassoCheckResult]: Stem: 362#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.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); 337#L-1 havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 338#L539 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 385#L547 main_#t~ret26 := valid_product_#res;main_~tmp~4 := main_#t~ret26;havoc main_#t~ret26; 317#L409 assume 0 != main_~tmp~4; 318#L383 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; 334#L305-1 [2019-11-19 22:59:16,737 INFO L796 eck$LassoCheckResult]: Loop: 334#L305-1 assume !false; 386#L56 assume test_~splverifierCounter~0 < 4; 387#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 346#L65 assume !(0 != test_~tmp~0); 340#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 341#L75 assume !(0 != test_~tmp___0~0); 353#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 379#L85 assume 0 != test_~tmp___2~0; 319#L91-1 assume !(0 != ~pumpRunning~0); 321#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 342#L160 assume !(0 == ~pumpRunning~0); 328#L135 havoc __utac_acc__Specification3_spec__1_#t~ret23, __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 329#L466 __utac_acc__Specification3_spec__1_#t~ret23 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret23;havoc __utac_acc__Specification3_spec__1_#t~ret23; 344#L299 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 334#L305-1 [2019-11-19 22:59:16,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:16,738 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-19 22:59:16,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:16,738 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209329286] [2019-11-19 22:59:16,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:16,857 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:59:16,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:16,857 INFO L82 PathProgramCache]: Analyzing trace with hash -353177362, now seen corresponding path program 1 times [2019-11-19 22:59:16,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:16,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655102021] [2019-11-19 22:59:16,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:59:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:59:16,869 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655102021] [2019-11-19 22:59:16,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:59:16,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:59:16,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545045669] [2019-11-19 22:59:16,870 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 22:59:16,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:59:16,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:59:16,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:59:16,871 INFO L87 Difference]: Start difference. First operand 123 states and 177 transitions. cyclomatic complexity: 57 Second operand 3 states. [2019-11-19 22:59:16,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:59:16,943 INFO L93 Difference]: Finished difference Result 168 states and 229 transitions. [2019-11-19 22:59:16,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:59:16,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 229 transitions. [2019-11-19 22:59:16,946 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2019-11-19 22:59:16,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 168 states and 229 transitions. [2019-11-19 22:59:16,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 168 [2019-11-19 22:59:16,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 168 [2019-11-19 22:59:16,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 168 states and 229 transitions. [2019-11-19 22:59:16,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:59:16,950 INFO L688 BuchiCegarLoop]: Abstraction has 168 states and 229 transitions. [2019-11-19 22:59:16,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states and 229 transitions. [2019-11-19 22:59:16,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2019-11-19 22:59:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-19 22:59:16,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 229 transitions. [2019-11-19 22:59:16,959 INFO L711 BuchiCegarLoop]: Abstraction has 168 states and 229 transitions. [2019-11-19 22:59:16,959 INFO L591 BuchiCegarLoop]: Abstraction has 168 states and 229 transitions. [2019-11-19 22:59:16,959 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:59:16,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 229 transitions. [2019-11-19 22:59:16,961 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2019-11-19 22:59:16,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:59:16,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:59:16,962 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:59:16,962 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] [2019-11-19 22:59:16,963 INFO L794 eck$LassoCheckResult]: Stem: 661#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.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); 634#L-1 havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 635#L539 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 696#L547 main_#t~ret26 := valid_product_#res;main_~tmp~4 := main_#t~ret26;havoc main_#t~ret26; 616#L409 assume 0 != main_~tmp~4; 617#L383 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; 630#L305-1 [2019-11-19 22:59:16,963 INFO L796 eck$LassoCheckResult]: Loop: 630#L305-1 assume !false; 694#L56 assume test_~splverifierCounter~0 < 4; 695#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 642#L65 assume !(0 != test_~tmp~0); 636#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 637#L75 assume !(0 != test_~tmp___0~0); 651#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 687#L85 assume 0 != test_~tmp___2~0; 614#L91-1 assume !(0 != ~pumpRunning~0); 615#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 638#L160 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 639#L506 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 631#L511 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 632#L262 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~1 := 0; 698#L262-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 690#L268 processEnvironment_#t~ret4 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; 652#L164 assume !(0 != processEnvironment_~tmp~1); 654#L135 havoc __utac_acc__Specification3_spec__1_#t~ret23, __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 756#L466 __utac_acc__Specification3_spec__1_#t~ret23 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret23;havoc __utac_acc__Specification3_spec__1_#t~ret23; 640#L299 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3; 630#L305-1 [2019-11-19 22:59:16,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:16,963 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-19 22:59:16,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:16,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907424223] [2019-11-19 22:59:16,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,037 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:59:17,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:17,037 INFO L82 PathProgramCache]: Analyzing trace with hash -539551526, now seen corresponding path program 1 times [2019-11-19 22:59:17,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:17,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551862849] [2019-11-19 22:59:17,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,050 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:59:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:17,051 INFO L82 PathProgramCache]: Analyzing trace with hash -524839552, now seen corresponding path program 1 times [2019-11-19 22:59:17,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:17,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684912318] [2019-11-19 22:59:17,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:59:17,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:59:17,106 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684912318] [2019-11-19 22:59:17,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:59:17,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:59:17,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863789460] [2019-11-19 22:59:17,225 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-19 22:59:17,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:59:17,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 22:59:17,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 22:59:17,309 INFO L87 Difference]: Start difference. First operand 168 states and 229 transitions. cyclomatic complexity: 64 Second operand 5 states. [2019-11-19 22:59:17,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:59:17,437 INFO L93 Difference]: Finished difference Result 548 states and 750 transitions. [2019-11-19 22:59:17,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 22:59:17,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 548 states and 750 transitions. [2019-11-19 22:59:17,446 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 414 [2019-11-19 22:59:17,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 548 states to 548 states and 750 transitions. [2019-11-19 22:59:17,454 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 548 [2019-11-19 22:59:17,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 548 [2019-11-19 22:59:17,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 548 states and 750 transitions. [2019-11-19 22:59:17,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:59:17,461 INFO L688 BuchiCegarLoop]: Abstraction has 548 states and 750 transitions. [2019-11-19 22:59:17,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states and 750 transitions. [2019-11-19 22:59:17,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 330. [2019-11-19 22:59:17,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-11-19 22:59:17,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 440 transitions. [2019-11-19 22:59:17,487 INFO L711 BuchiCegarLoop]: Abstraction has 330 states and 440 transitions. [2019-11-19 22:59:17,488 INFO L591 BuchiCegarLoop]: Abstraction has 330 states and 440 transitions. [2019-11-19 22:59:17,488 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 22:59:17,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 330 states and 440 transitions. [2019-11-19 22:59:17,491 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 240 [2019-11-19 22:59:17,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:59:17,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:59:17,492 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 22:59:17,492 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, 1, 1] [2019-11-19 22:59:17,492 INFO L794 eck$LassoCheckResult]: Stem: 1398#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string30.base, #t~string30.offset, 1);call write~init~int(77, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(101, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(116, #t~string30.base, 3 + #t~string30.offset, 1);call write~init~int(104, #t~string30.base, 4 + #t~string30.offset, 1);call write~init~int(58, #t~string30.base, 5 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 6 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string32.base, #t~string32.offset, 1);call write~init~int(82, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(73, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(84, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 4 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(75, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.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); 1368#L-1 havoc main_#res;havoc main_#t~ret26, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 1369#L539 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1437#L547 main_#t~ret26 := valid_product_#res;main_~tmp~4 := main_#t~ret26;havoc main_#t~ret26; 1350#L409 assume 0 != main_~tmp~4; 1351#L383 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; 1366#L305-1 [2019-11-19 22:59:17,493 INFO L796 eck$LassoCheckResult]: Loop: 1366#L305-1 assume !false; 1606#L56 assume test_~splverifierCounter~0 < 4; 1607#L57 test_~tmp~0 := test_#t~nondet0;havoc test_#t~nondet0; 1666#L65 assume !(0 != test_~tmp~0); 1664#L65-1 test_~tmp___0~0 := test_#t~nondet1;havoc test_#t~nondet1; 1663#L75 assume !(0 != test_~tmp___0~0); 1662#L75-1 test_~tmp___2~0 := test_#t~nondet2;havoc test_#t~nondet2; 1661#L85 assume 0 != test_~tmp___2~0; 1644#L91-1 assume !(0 != ~pumpRunning~0); 1585#L128 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1634#L160 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1483#L506 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1642#L511 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 1640#L262 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~1 := 0; 1454#L262-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1432#L268 processEnvironment_#t~ret4 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret4;havoc processEnvironment_#t~ret4; 1387#L164 assume !(0 != processEnvironment_~tmp~1); 1389#L135 havoc __utac_acc__Specification3_spec__1_#t~ret23, __utac_acc__Specification3_spec__1_#t~ret24, __utac_acc__Specification3_spec__1_#t~ret25, __utac_acc__Specification3_spec__1_~tmp~3, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~3;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 1613#L466 __utac_acc__Specification3_spec__1_#t~ret23 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~3 := __utac_acc__Specification3_spec__1_#t~ret23;havoc __utac_acc__Specification3_spec__1_#t~ret23; 1612#L299 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3);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; 1611#L498 __utac_acc__Specification3_spec__1_#t~ret24 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret24;havoc __utac_acc__Specification3_spec__1_#t~ret24; 1609#L305 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1366#L305-1 [2019-11-19 22:59:17,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:17,493 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-19 22:59:17,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:17,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531930891] [2019-11-19 22:59:17,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,563 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:59:17,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:17,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1182032684, now seen corresponding path program 1 times [2019-11-19 22:59:17,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:17,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488857834] [2019-11-19 22:59:17,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,583 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:59:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:59:17,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1859629486, now seen corresponding path program 1 times [2019-11-19 22:59:17,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:59:17,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078659426] [2019-11-19 22:59:17,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:59:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:59:17,687 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:59:17,844 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-19 22:59:42,970 WARN L191 SmtUtils]: Spent 25.05 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-19 22:59:56,943 WARN L191 SmtUtils]: Spent 13.97 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-19 22:59:57,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:59:57 BoogieIcfgContainer [2019-11-19 22:59:57,058 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:59:57,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:59:57,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:59:57,059 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:59:57,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:59:15" (3/4) ... [2019-11-19 22:59:57,063 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:59:57,141 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8b983838-23d1-4fe5-9419-ad4b644284a1/bin/uautomizer/witness.graphml [2019-11-19 22:59:57,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:59:57,143 INFO L168 Benchmark]: Toolchain (without parser) took 42872.12 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 302.0 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -270.2 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:59:57,143 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-19 22:59:57,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:59:57,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.15 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:59:57,145 INFO L168 Benchmark]: Boogie Preprocessor took 36.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:59:57,145 INFO L168 Benchmark]: RCFGBuilder took 805.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:59:57,146 INFO L168 Benchmark]: BuchiAutomizer took 41377.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -179.2 MB). Peak memory consumption was 418.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:59:57,146 INFO L168 Benchmark]: Witness Printer took 82.49 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:59:57,149 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 509.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.15 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 805.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 41377.07 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -179.2 MB). Peak memory consumption was 418.5 MB. Max. memory is 11.5 GB. * Witness Printer took 82.49 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 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 6 locations. The remainder module has 330 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 40.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 290 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 330 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 396 SDtfs, 1042 SDslu, 1066 SDs, 0 SdLazy, 103 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 55]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2947} State at position 1 is {NULL=10554, NULL=0, NULL=2947, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16fba54=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31285d02=0, NULL=17541, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30e33c69=51, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78dd37d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73fe4c80=0, NULL=17552, NULL=17553, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=17540, NULL=0, tmp___1=0, NULL=17556, NULL=17543, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@562164b4=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a23b5a=0, NULL=10556, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7da8a5c3=0, tmp=0, NULL=10555, tmp___0=1, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=17554, \result=1, NULL=0, NULL=0, NULL=17548, \result=0, retValue_acc=0, tmp___0=0, NULL=17555, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=17547, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bffe88b=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49e73406=0, NULL=17539, tmp=1, NULL=0, NULL=0, NULL=17545, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=17546, NULL=17885, retValue_acc=1, tmp=1, tmp___2=51, NULL=17542, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=2949, NULL=17884, NULL=17549, tmp=0, tmp___1=0, head=0, NULL=0, NULL=2948, NULL=17550, NULL=0, NULL=0, NULL=17883, NULL=17551} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 Loop: [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L128] COND FALSE !(\read(pumpRunning)) [L135] COND TRUE \read(systemActive) [L157] int tmp ; [L160] COND TRUE ! pumpRunning [L254] int retValue_acc ; [L255] int tmp ; [L256] int tmp___0 ; [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] return (retValue_acc); [L260] tmp = isHighWaterSensorDry() [L262] COND TRUE \read(tmp) [L263] tmp___0 = 0 [L267] retValue_acc = tmp___0 [L268] return (retValue_acc); [L162] tmp = isHighWaterLevel() [L164] COND FALSE !(\read(tmp)) [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] tmp___0 = getWaterLevel() [L305] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...