./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product16.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_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/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 09e3ebf9e88b37df43a29457dc1ad9a694c62daa .......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2019-11-16 00:18:21,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:18:21,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:18:21,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:18:21,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:18:21,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:18:21,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:18:21,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:18:21,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:18:21,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:18:21,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:18:21,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:18:21,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:18:21,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:18:21,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:18:21,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:18:21,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:18:21,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:18:21,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:18:21,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:18:21,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:18:21,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:18:21,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:18:21,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:18:21,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:18:21,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:18:21,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:18:21,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:18:21,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:18:21,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:18:21,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:18:21,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:18:21,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:18:21,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:18:21,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:18:21,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:18:21,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:18:21,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:18:21,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:18:21,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:18:21,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:18:21,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-16 00:18:21,806 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:18:21,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:18:21,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:18:21,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:18:21,808 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:18:21,808 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-16 00:18:21,808 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-16 00:18:21,809 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-16 00:18:21,809 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-16 00:18:21,809 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-16 00:18:21,809 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-16 00:18:21,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:18:21,810 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:18:21,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:18:21,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:18:21,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:18:21,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:18:21,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-16 00:18:21,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-16 00:18:21,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-16 00:18:21,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:18:21,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:18:21,811 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-16 00:18:21,812 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:18:21,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-16 00:18:21,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:18:21,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:18:21,812 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-16 00:18:21,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:18:21,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:18:21,813 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-16 00:18:21,814 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-16 00:18:21,814 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_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/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 -> 09e3ebf9e88b37df43a29457dc1ad9a694c62daa [2019-11-16 00:18:21,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:18:21,851 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:18:21,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:18:21,856 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:18:21,856 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:18:21,857 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2019-11-16 00:18:21,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/data/c377d4830/dbbdd069d7be488fb8bb31795fbf8535/FLAG179b14721 [2019-11-16 00:18:22,384 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:18:22,385 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2019-11-16 00:18:22,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/data/c377d4830/dbbdd069d7be488fb8bb31795fbf8535/FLAG179b14721 [2019-11-16 00:18:22,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/data/c377d4830/dbbdd069d7be488fb8bb31795fbf8535 [2019-11-16 00:18:22,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:18:22,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:18:22,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:18:22,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:18:22,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:18:22,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:18:22" (1/1) ... [2019-11-16 00:18:22,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e37240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:22, skipping insertion in model container [2019-11-16 00:18:22,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:18:22" (1/1) ... [2019-11-16 00:18:22,753 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:18:22,814 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:18:23,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:18:23,203 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:18:23,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:18:23,352 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:18:23,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23 WrapperNode [2019-11-16 00:18:23,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:18:23,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:18:23,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:18:23,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:18:23,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... [2019-11-16 00:18:23,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... [2019-11-16 00:18:23,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:18:23,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:18:23,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:18:23,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:18:23,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... [2019-11-16 00:18:23,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... [2019-11-16 00:18:23,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... [2019-11-16 00:18:23,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... [2019-11-16 00:18:23,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... [2019-11-16 00:18:23,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... [2019-11-16 00:18:23,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... [2019-11-16 00:18:23,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:18:23,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:18:23,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:18:23,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:18:23,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/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 [2019-11-16 00:18:23,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:18:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-16 00:18:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:18:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:18:24,255 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:18:24,255 INFO L284 CfgBuilder]: Removed 108 assume(true) statements. [2019-11-16 00:18:24,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:18:24 BoogieIcfgContainer [2019-11-16 00:18:24,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:18:24,257 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-16 00:18:24,257 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-16 00:18:24,260 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-16 00:18:24,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:18:24,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:18:22" (1/3) ... [2019-11-16 00:18:24,264 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a059d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:18:24, skipping insertion in model container [2019-11-16 00:18:24,264 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:18:24,264 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:18:23" (2/3) ... [2019-11-16 00:18:24,265 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a059d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:18:24, skipping insertion in model container [2019-11-16 00:18:24,265 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-16 00:18:24,265 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:18:24" (3/3) ... [2019-11-16 00:18:24,268 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2019-11-16 00:18:24,316 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-16 00:18:24,317 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-16 00:18:24,317 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-16 00:18:24,318 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:18:24,318 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:18:24,318 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-16 00:18:24,318 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:18:24,318 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-16 00:18:24,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-16 00:18:24,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-16 00:18:24,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:18:24,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:18:24,373 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-16 00:18:24,373 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:18:24,373 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-16 00:18:24,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states. [2019-11-16 00:18:24,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-16 00:18:24,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:18:24,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:18:24,380 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-16 00:18:24,380 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:18:24,385 INFO L791 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 7#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 68#L792true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 3#L800true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 42#L139true assume 0 != main_~tmp~0; 67#L112true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 51#L901-1true [2019-11-16 00:18:24,385 INFO L793 eck$LassoCheckResult]: Loop: 51#L901-1true assume !false; 58#L532true assume test_~splverifierCounter~0 < 4; 4#L533true test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 11#L541true assume !(0 != test_~tmp~4); 14#L541-1true test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 74#L551true assume !(0 != test_~tmp___0~0); 75#L551-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 61#L561true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 71#L569-1true assume !(0 != ~pumpRunning~0); 45#L604true assume !(0 != ~systemActive~0); 27#L611true havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 48#L849-1true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 6#L895true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 51#L901-1true [2019-11-16 00:18:24,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:18:24,391 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-16 00:18:24,400 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:18:24,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137558208] [2019-11-16 00:18:24,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:24,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:24,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:18:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:25,271 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:18:25,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:18:25,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1672356225, now seen corresponding path program 1 times [2019-11-16 00:18:25,274 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:18:25,274 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623308400] [2019-11-16 00:18:25,274 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:25,275 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:25,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:18:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:18:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:18:25,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623308400] [2019-11-16 00:18:25,340 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:18:25,340 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:18:25,340 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234040458] [2019-11-16 00:18:25,345 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-11-16 00:18:25,347 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:18:25,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:18:25,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:18:25,365 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2019-11-16 00:18:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:18:25,455 INFO L93 Difference]: Finished difference Result 142 states and 198 transitions. [2019-11-16 00:18:25,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:18:25,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 198 transitions. [2019-11-16 00:18:25,471 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2019-11-16 00:18:25,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 128 states and 183 transitions. [2019-11-16 00:18:25,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2019-11-16 00:18:25,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 128 [2019-11-16 00:18:25,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 128 states and 183 transitions. [2019-11-16 00:18:25,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-16 00:18:25,485 INFO L688 BuchiCegarLoop]: Abstraction has 128 states and 183 transitions. [2019-11-16 00:18:25,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states and 183 transitions. [2019-11-16 00:18:25,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2019-11-16 00:18:25,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-16 00:18:25,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 180 transitions. [2019-11-16 00:18:25,546 INFO L711 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2019-11-16 00:18:25,546 INFO L591 BuchiCegarLoop]: Abstraction has 126 states and 180 transitions. [2019-11-16 00:18:25,546 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-16 00:18:25,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 180 transitions. [2019-11-16 00:18:25,549 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2019-11-16 00:18:25,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:18:25,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:18:25,550 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-16 00:18:25,550 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:18:25,550 INFO L791 eck$LassoCheckResult]: Stem: 281#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 234#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 235#L792 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 225#L800 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 226#L139 assume 0 != main_~tmp~0; 282#L112 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 298#L901-1 [2019-11-16 00:18:25,551 INFO L793 eck$LassoCheckResult]: Loop: 298#L901-1 assume !false; 328#L532 assume test_~splverifierCounter~0 < 4; 329#L533 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 350#L541 assume !(0 != test_~tmp~4); 348#L541-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 347#L551 assume !(0 != test_~tmp___0~0); 345#L551-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 344#L561 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 293#L569-1 assume !(0 != ~pumpRunning~0); 340#L604 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 338#L636 assume !(0 != ~pumpRunning~0); 336#L611 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 335#L849-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 331#L895 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 298#L901-1 [2019-11-16 00:18:25,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:18:25,551 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-16 00:18:25,552 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:18:25,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845735371] [2019-11-16 00:18:25,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:25,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:25,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:18:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:26,011 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:18:26,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:18:26,012 INFO L82 PathProgramCache]: Analyzing trace with hash -323963314, now seen corresponding path program 1 times [2019-11-16 00:18:26,012 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:18:26,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212748280] [2019-11-16 00:18:26,013 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,013 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:18:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:26,028 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:18:26,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:18:26,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1279076212, now seen corresponding path program 1 times [2019-11-16 00:18:26,033 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:18:26,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931345928] [2019-11-16 00:18:26,033 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,034 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:18:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:18:26,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:18:26,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931345928] [2019-11-16 00:18:26,104 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:18:26,104 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:18:26,105 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412929002] [2019-11-16 00:18:26,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:18:26,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:18:26,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:18:26,228 INFO L87 Difference]: Start difference. First operand 126 states and 180 transitions. cyclomatic complexity: 57 Second operand 5 states. [2019-11-16 00:18:26,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:18:26,468 INFO L93 Difference]: Finished difference Result 410 states and 598 transitions. [2019-11-16 00:18:26,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:18:26,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 410 states and 598 transitions. [2019-11-16 00:18:26,474 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 302 [2019-11-16 00:18:26,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 410 states to 410 states and 598 transitions. [2019-11-16 00:18:26,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 410 [2019-11-16 00:18:26,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 410 [2019-11-16 00:18:26,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 410 states and 598 transitions. [2019-11-16 00:18:26,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-16 00:18:26,487 INFO L688 BuchiCegarLoop]: Abstraction has 410 states and 598 transitions. [2019-11-16 00:18:26,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states and 598 transitions. [2019-11-16 00:18:26,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 246. [2019-11-16 00:18:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-11-16 00:18:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 346 transitions. [2019-11-16 00:18:26,516 INFO L711 BuchiCegarLoop]: Abstraction has 246 states and 346 transitions. [2019-11-16 00:18:26,516 INFO L591 BuchiCegarLoop]: Abstraction has 246 states and 346 transitions. [2019-11-16 00:18:26,516 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-16 00:18:26,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 346 transitions. [2019-11-16 00:18:26,518 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 176 [2019-11-16 00:18:26,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-16 00:18:26,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-16 00:18:26,519 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-16 00:18:26,520 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:18:26,520 INFO L791 eck$LassoCheckResult]: Stem: 839#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(13);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(80, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(117, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(109, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(112, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(32, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string58.base, #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 1 + #t~string58.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string63.base, #t~string63.offset, 1);call write~init~int(77, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(101, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(116, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(104, #t~string63.base, 4 + #t~string63.offset, 1);call write~init~int(58, #t~string63.base, 5 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 6 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string65.base, #t~string65.offset, 1);call write~init~int(82, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(73, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(84, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 4 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(75, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 787#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 788#L792 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 779#L800 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 780#L139 assume 0 != main_~tmp~0; 840#L112 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 858#L901-1 [2019-11-16 00:18:26,520 INFO L793 eck$LassoCheckResult]: Loop: 858#L901-1 assume !false; 941#L532 assume test_~splverifierCounter~0 < 4; 781#L533 test_~tmp~4 := test_#t~nondet36;havoc test_#t~nondet36; 782#L541 assume !(0 != test_~tmp~4); 797#L541-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 874#L551 assume !(0 != test_~tmp___0~0); 875#L551-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 860#L561 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 861#L569-1 assume !(0 != ~pumpRunning~0); 829#L604 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 800#L636 assume !(0 != ~pumpRunning~0); 802#L611 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 822#L849-1 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 785#L895 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 786#L881 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 863#L901 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 858#L901-1 [2019-11-16 00:18:26,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:18:26,521 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-16 00:18:26,521 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:18:26,521 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741821684] [2019-11-16 00:18:26,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:18:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:26,827 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:18:26,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:18:26,828 INFO L82 PathProgramCache]: Analyzing trace with hash -2091093440, now seen corresponding path program 1 times [2019-11-16 00:18:26,828 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:18:26,828 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746766342] [2019-11-16 00:18:26,828 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,828 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:18:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:26,844 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:18:26,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:18:26,845 INFO L82 PathProgramCache]: Analyzing trace with hash 831599078, now seen corresponding path program 1 times [2019-11-16 00:18:26,845 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:18:26,846 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652580301] [2019-11-16 00:18:26,846 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,846 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:18:26,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:18:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:18:27,152 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:18:27,270 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-11-16 00:18:45,923 WARN L191 SmtUtils]: Spent 18.60 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-11-16 00:18:57,633 WARN L191 SmtUtils]: Spent 11.71 s on a formula simplification that was a NOOP. DAG size: 449 [2019-11-16 00:18:57,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:18:57 BoogieIcfgContainer [2019-11-16 00:18:57,712 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-16 00:18:57,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:18:57,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:18:57,713 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:18:57,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:18:24" (3/4) ... [2019-11-16 00:18:57,716 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-16 00:18:57,766 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d485395d-4e9b-47e9-bc4d-10b0cb6e74e2/bin/uautomizer/witness.graphml [2019-11-16 00:18:57,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:18:57,767 INFO L168 Benchmark]: Toolchain (without parser) took 35040.85 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.8 MB). Free memory was 946.5 MB in the beginning and 991.7 MB in the end (delta: -45.3 MB). Peak memory consumption was 176.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:18:57,768 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:18:57,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:18:57,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.03 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:18:57,769 INFO L168 Benchmark]: Boogie Preprocessor took 50.32 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. [2019-11-16 00:18:57,769 INFO L168 Benchmark]: RCFGBuilder took 778.83 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. [2019-11-16 00:18:57,770 INFO L168 Benchmark]: BuchiAutomizer took 33454.99 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 79.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.5 MB). Peak memory consumption was 294.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:18:57,770 INFO L168 Benchmark]: Witness Printer took 53.84 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 999.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:18:57,773 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 625.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.03 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.32 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 778.83 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 33454.99 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 79.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.5 MB). Peak memory consumption was 294.3 MB. Max. memory is 11.5 GB. * Witness Printer took 53.84 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 999.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 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 5 locations. The remainder module has 246 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 32.8s. 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, 166 StatesRemovedByMinimization, 2 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: 224 SDtfs, 432 SDslu, 448 SDs, 0 SdLazy, 89 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 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: 531]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4} State at position 1 is {NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=4, NULL=-23, NULL=0, NULL=0, NULL=-3, NULL=-1, methaneLevelCritical=0, NULL=0, tmp=0, NULL=0, NULL=-24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2878152f=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b622d38=0, tmp___1=0, NULL=-10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@309184b1=0, NULL=-27, NULL=-18, NULL=-17, cleanupTimeShifts=4, NULL=-6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64eecb50=0, NULL=-22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3076c70=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a7ebe26=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6768bf4a=0, tmp___0=1, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-19, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44774dd4=0, NULL=-5, retValue_acc=0, NULL=-28, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=-13, NULL=-21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@236c20eb=0, NULL=0, NULL=0, NULL=-20, NULL=-4, NULL=-7, retValue_acc=1, NULL=-25, retValue_acc=1, tmp___2=62, NULL=-26, splverifierCounter=0, \result=0, tmp___1=0, head=0, NULL=0, tmp=0, NULL=-11, NULL=0, NULL=-12, NULL=0, NULL=-2, NULL=0, NULL=0, NULL=-9, NULL=0, NULL=-8} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int cleanupTimeShifts = 4; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L796] int retValue_acc ; [L799] retValue_acc = 1 [L800] return (retValue_acc); [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] splverifierCounter = 0 Loop: [L531] COND TRUE 1 [L533] COND TRUE splverifierCounter < 4 [L539] tmp = __VERIFIER_nondet_int() [L541] COND FALSE !(\read(tmp)) [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp___2) [L765] systemActive = 1 [L604] COND FALSE !(\read(pumpRunning)) [L611] COND TRUE \read(systemActive) [L633] int tmp ; [L636] COND FALSE !(\read(pumpRunning)) [L887] int tmp ; [L888] int tmp___0 ; [L889] int tmp___1 ; [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L893] tmp = isMethaneLevelCritical() [L895] COND FALSE !(\read(tmp)) [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); [L899] tmp___0 = getWaterLevel() [L901] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...