./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product18.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/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/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 414418e2da6d7a65cf7274af502c2c1949ddb3af ......................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2019-10-22 08:55:00,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:00,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:00,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:00,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:00,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:00,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:00,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:00,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:00,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:00,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:00,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:00,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:00,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:00,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:00,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:00,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:00,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:00,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:00,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:00,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:00,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:00,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:00,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:00,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:00,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:00,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:00,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:00,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:00,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:00,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:00,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:00,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:00,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:00,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:00,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:00,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:00,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:00,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:00,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:00,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:00,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 08:55:00,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:00,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:00,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:00,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:00,748 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:00,750 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:55:00,750 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:55:00,750 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:55:00,751 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:55:00,751 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:55:00,751 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:55:00,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:00,751 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:00,752 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:00,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:00,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:00,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:00,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:55:00,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:55:00,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:55:00,753 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:00,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:00,753 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:55:00,753 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:00,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:55:00,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:00,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:00,754 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:55:00,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:00,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:00,755 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:55:00,756 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:55:00,759 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/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/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 -> 414418e2da6d7a65cf7274af502c2c1949ddb3af [2019-10-22 08:55:00,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:00,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:00,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:00,811 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:00,812 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:00,812 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2019-10-22 08:55:00,873 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/data/7f2d1c784/a2901b6722214a3da6f548527e10a6ea/FLAG231d1be39 [2019-10-22 08:55:01,288 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:01,288 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2019-10-22 08:55:01,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/data/7f2d1c784/a2901b6722214a3da6f548527e10a6ea/FLAG231d1be39 [2019-10-22 08:55:01,644 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/data/7f2d1c784/a2901b6722214a3da6f548527e10a6ea [2019-10-22 08:55:01,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:01,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:01,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:01,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:01,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:01,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d805b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:01, skipping insertion in model container [2019-10-22 08:55:01,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:01" (1/1) ... [2019-10-22 08:55:01,663 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:01,703 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:02,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:02,095 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:02,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:02,205 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:02,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02 WrapperNode [2019-10-22 08:55:02,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:02,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:02,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:02,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:02,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... [2019-10-22 08:55:02,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... [2019-10-22 08:55:02,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:02,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:02,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:02,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:02,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... [2019-10-22 08:55:02,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... [2019-10-22 08:55:02,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... [2019-10-22 08:55:02,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... [2019-10-22 08:55:02,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... [2019-10-22 08:55:02,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... [2019-10-22 08:55:02,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... [2019-10-22 08:55:02,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:02,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:02,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:02,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:02,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/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 [2019-10-22 08:55:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:55:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:55:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:03,097 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:03,097 INFO L284 CfgBuilder]: Removed 104 assume(true) statements. [2019-10-22 08:55:03,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:03 BoogieIcfgContainer [2019-10-22 08:55:03,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:03,099 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:55:03,099 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:55:03,103 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:55:03,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:03,104 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:55:01" (1/3) ... [2019-10-22 08:55:03,106 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39caebda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:03, skipping insertion in model container [2019-10-22 08:55:03,106 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:03,106 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:02" (2/3) ... [2019-10-22 08:55:03,107 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39caebda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:03, skipping insertion in model container [2019-10-22 08:55:03,107 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:03,107 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:03" (3/3) ... [2019-10-22 08:55:03,109 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2019-10-22 08:55:03,161 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:55:03,162 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:55:03,163 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:55:03,163 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:03,163 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:03,163 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:55:03,163 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:03,163 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:55:03,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-10-22 08:55:03,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-10-22 08:55:03,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:03,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:03,230 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:03,231 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:03,231 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:55:03,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states. [2019-10-22 08:55:03,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-10-22 08:55:03,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:03,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:03,239 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:03,239 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:03,245 INFO L791 eck$LassoCheckResult]: Stem: 25#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1); 10#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; 80#L858true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 6#L866true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 77#L130true assume 0 != main_~tmp~0; 19#L103true havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 62#L887-1true [2019-10-22 08:55:03,245 INFO L793 eck$LassoCheckResult]: Loop: 62#L887-1true assume !false; 34#L780true assume test_~splverifierCounter~0 < 4; 57#L781true test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 9#L789true assume !(0 != test_~tmp~6); 67#L789-1true test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 66#L799true assume !(0 != test_~tmp___0~1); 41#L799-1true test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 24#L809true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 54#L817-2true assume !(0 != ~pumpRunning~0); 45#L616true assume !(0 != ~systemActive~0); 55#L623true 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___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;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~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 72#L192true __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; 14#L881true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 62#L887-1true [2019-10-22 08:55:03,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:03,257 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-10-22 08:55:03,265 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:03,265 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978157612] [2019-10-22 08:55:03,265 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:03,266 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:03,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:03,933 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:03,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:03,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1680729482, now seen corresponding path program 1 times [2019-10-22 08:55:03,934 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:03,935 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387191016] [2019-10-22 08:55:03,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:03,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:03,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:03,993 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387191016] [2019-10-22 08:55:03,994 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:03,994 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:03,994 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162549618] [2019-10-22 08:55:03,998 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:55:03,999 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:04,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:04,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:04,012 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 3 states. [2019-10-22 08:55:04,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:04,053 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2019-10-22 08:55:04,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:04,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 107 transitions. [2019-10-22 08:55:04,058 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-10-22 08:55:04,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 99 transitions. [2019-10-22 08:55:04,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2019-10-22 08:55:04,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2019-10-22 08:55:04,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 99 transitions. [2019-10-22 08:55:04,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:55:04,074 INFO L688 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-10-22 08:55:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 99 transitions. [2019-10-22 08:55:04,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-10-22 08:55:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 08:55:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2019-10-22 08:55:04,106 INFO L711 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-10-22 08:55:04,106 INFO L591 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-10-22 08:55:04,106 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:55:04,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 99 transitions. [2019-10-22 08:55:04,108 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-10-22 08:55:04,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:04,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:04,109 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:04,109 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:04,109 INFO L791 eck$LassoCheckResult]: Stem: 199#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1); 175#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; 176#L858 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 168#L866 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 169#L130 assume 0 != main_~tmp~0; 191#L103 havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 182#L887-1 [2019-10-22 08:55:04,110 INFO L793 eck$LassoCheckResult]: Loop: 182#L887-1 assume !false; 216#L780 assume test_~splverifierCounter~0 < 4; 217#L781 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 172#L789 assume !(0 != test_~tmp~6); 174#L789-1 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 234#L799 assume !(0 != test_~tmp___0~1); 171#L799-1 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 196#L809 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 197#L817-2 assume !(0 != ~pumpRunning~0); 213#L616 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 200#L648 assume !(0 != ~pumpRunning~0); 202#L623 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___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;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~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 229#L192 __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; 181#L881 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 182#L887-1 [2019-10-22 08:55:04,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:04,110 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-10-22 08:55:04,110 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:04,110 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866998768] [2019-10-22 08:55:04,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:04,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:04,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:04,486 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:04,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:04,487 INFO L82 PathProgramCache]: Analyzing trace with hash -589998930, now seen corresponding path program 1 times [2019-10-22 08:55:04,487 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:04,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823376139] [2019-10-22 08:55:04,489 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:04,489 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:04,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:04,509 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:04,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1013040596, now seen corresponding path program 1 times [2019-10-22 08:55:04,510 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:04,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334538740] [2019-10-22 08:55:04,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:04,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:04,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:04,608 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334538740] [2019-10-22 08:55:04,608 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:04,608 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:04,608 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886197015] [2019-10-22 08:55:04,714 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-10-22 08:55:04,768 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:04,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:55:04,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:04,768 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. cyclomatic complexity: 30 Second operand 5 states. [2019-10-22 08:55:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:04,936 INFO L93 Difference]: Finished difference Result 241 states and 345 transitions. [2019-10-22 08:55:04,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:55:04,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 345 transitions. [2019-10-22 08:55:04,943 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2019-10-22 08:55:04,949 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 241 states and 345 transitions. [2019-10-22 08:55:04,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2019-10-22 08:55:04,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2019-10-22 08:55:04,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 345 transitions. [2019-10-22 08:55:04,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:55:04,952 INFO L688 BuchiCegarLoop]: Abstraction has 241 states and 345 transitions. [2019-10-22 08:55:04,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 345 transitions. [2019-10-22 08:55:04,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 136. [2019-10-22 08:55:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-10-22 08:55:04,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2019-10-22 08:55:04,962 INFO L711 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2019-10-22 08:55:04,962 INFO L591 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2019-10-22 08:55:04,962 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:55:04,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 188 transitions. [2019-10-22 08:55:04,965 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2019-10-22 08:55:04,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:04,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:04,965 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:55:04,966 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:04,966 INFO L791 eck$LassoCheckResult]: Stem: 527#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1); 504#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; 505#L858 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 497#L866 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 498#L130 assume 0 != main_~tmp~0; 517#L103 havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 518#L887-1 [2019-10-22 08:55:04,966 INFO L793 eck$LassoCheckResult]: Loop: 518#L887-1 assume !false; 543#L780 assume test_~splverifierCounter~0 < 4; 544#L781 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 501#L789 assume !(0 != test_~tmp~6); 503#L789-1 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 574#L799 assume !(0 != test_~tmp___0~1); 552#L799-1 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 524#L809 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 525#L817-2 assume !(0 != ~pumpRunning~0); 541#L616 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 528#L648 assume !(0 != ~pumpRunning~0); 530#L623 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___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;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~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 601#L192 __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; 510#L881 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 511#L224 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 568#L887 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 518#L887-1 [2019-10-22 08:55:04,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:04,966 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-10-22 08:55:04,967 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:04,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927271613] [2019-10-22 08:55:04,967 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:04,967 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:04,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:05,260 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:05,261 INFO L82 PathProgramCache]: Analyzing trace with hash -53282720, now seen corresponding path program 1 times [2019-10-22 08:55:05,261 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:05,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655263325] [2019-10-22 08:55:05,262 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:05,262 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:05,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:05,275 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:05,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:05,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1425557498, now seen corresponding path program 1 times [2019-10-22 08:55:05,284 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:05,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389925134] [2019-10-22 08:55:05,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:05,284 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:05,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:05,507 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:23,814 WARN L191 SmtUtils]: Spent 18.19 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-10-22 08:55:34,279 WARN L191 SmtUtils]: Spent 10.46 s on a formula simplification that was a NOOP. DAG size: 449 [2019-10-22 08:55:34,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:55:34 BoogieIcfgContainer [2019-10-22 08:55:34,341 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:55:34,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:34,344 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:34,344 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:34,344 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:03" (3/4) ... [2019-10-22 08:55:34,347 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:55:34,389 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_23ab94e2-9fca-405e-8752-cbd9664885a6/bin/uautomizer/witness.graphml [2019-10-22 08:55:34,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:34,391 INFO L168 Benchmark]: Toolchain (without parser) took 32743.52 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 338.7 MB). Free memory was 935.6 MB in the beginning and 1.3 GB in the end (delta: -379.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:34,391 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:34,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -204.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,392 INFO L168 Benchmark]: Boogie Preprocessor took 40.64 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. [2019-10-22 08:55:34,393 INFO L168 Benchmark]: RCFGBuilder took 781.37 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: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,393 INFO L168 Benchmark]: BuchiAutomizer took 31243.87 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -239.7 MB). Peak memory consumption was 390.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,393 INFO L168 Benchmark]: Witness Printer took 46.29 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,395 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 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 557.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 935.6 MB in the beginning and 1.1 GB in the end (delta: -204.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.64 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 781.37 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: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 31243.87 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -239.7 MB). Peak memory consumption was 390.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.29 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 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 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 136 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 30.7s. Construction of modules took 0.0s. 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, 105 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 136 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 239 SDtfs, 466 SDslu, 400 SDs, 0 SdLazy, 46 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 779]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22304} State at position 1 is {retValue_acc=0, NULL=0, NULL=-18, NULL=8838, NULL=0, retValue_acc=0, NULL=22304, NULL=0, NULL=0, NULL=0, NULL=-20, NULL=-7, NULL=0, NULL=0, methaneLevelCritical=0, NULL=-19, retValue_acc=1, NULL=22163, NULL=-10, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cbf630d=0, NULL=-15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c52e0b6=0, tmp___1=0, NULL=-8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fc4452d=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=-5, cleanupTimeShifts=4, NULL=-14, NULL=-12, NULL=12472, NULL=-4, tmp=0, tmp___0=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73be2ee9=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=0, NULL=0, NULL=-9, \result=1, head=0, pumpRunning=0, tmp=1, NULL=-1, NULL=-17, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bbf568=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cc074c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46c46449=61, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6225afbb=0, NULL=-16, tmp___2=61, NULL=-6, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=-13, NULL=-2, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28beffda=0, head=0, tmp=0, NULL=-11, NULL=0, NULL=0, NULL=8839, NULL=22303, NULL=-3} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] splverifierCounter = 0 Loop: [L779] COND TRUE 1 [L781] COND TRUE splverifierCounter < 4 [L787] tmp = __VERIFIER_nondet_int() [L789] COND FALSE !(\read(tmp)) [L797] tmp___0 = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp___0)) [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___2) [L764] systemActive = 1 [L616] COND FALSE !(\read(pumpRunning)) [L623] COND TRUE \read(systemActive) [L645] int tmp ; [L648] COND FALSE !(\read(pumpRunning)) [L873] int tmp ; [L874] int tmp___0 ; [L875] int tmp___1 ; [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); [L879] tmp = isMethaneLevelCritical() [L881] COND FALSE !(\read(tmp)) [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); [L885] tmp___0 = getWaterLevel() [L887] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...