./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/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 06aae21f289bee6dc7cb083e66e9be5f9a234275 .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 17:32:42,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:32:42,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:32:42,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:32:42,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:32:42,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:32:42,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:32:42,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:32:42,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:32:42,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:32:42,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:32:42,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:32:42,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:32:42,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:32:42,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:32:42,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:32:42,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:32:42,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:32:42,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:32:42,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:32:42,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:32:42,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:32:42,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:32:42,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:32:42,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:32:42,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:32:42,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:32:42,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:32:42,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:32:42,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:32:42,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:32:42,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:32:42,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:32:42,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:32:42,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:32:42,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:32:42,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:32:42,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:32:42,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:32:42,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:32:42,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:32:42,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:32:42,756 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:32:42,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:32:42,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:32:42,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:32:42,758 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:32:42,758 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:32:42,758 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:32:42,758 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:32:42,758 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:32:42,759 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:32:42,759 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:32:42,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:32:42,759 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:32:42,759 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:32:42,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:32:42,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:32:42,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:32:42,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:32:42,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:32:42,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:32:42,761 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:32:42,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:32:42,761 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:32:42,761 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:32:42,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:32:42,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:32:42,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:32:42,762 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:32:42,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:32:42,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:32:42,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:32:42,762 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:32:42,763 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:32:42,763 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_8aec34f7-9460-4c38-8965-a9af97107d23/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 -> 06aae21f289bee6dc7cb083e66e9be5f9a234275 [2019-12-07 17:32:42,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:32:42,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:32:42,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:32:42,897 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:32:42,898 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:32:42,898 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2019-12-07 17:32:42,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/data/78f32014a/36193b6f34744acfb10472a4af472ccd/FLAG3adac31bc [2019-12-07 17:32:43,360 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:32:43,360 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2019-12-07 17:32:43,369 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/data/78f32014a/36193b6f34744acfb10472a4af472ccd/FLAG3adac31bc [2019-12-07 17:32:43,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/data/78f32014a/36193b6f34744acfb10472a4af472ccd [2019-12-07 17:32:43,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:32:43,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:32:43,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:32:43,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:32:43,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:32:43,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43, skipping insertion in model container [2019-12-07 17:32:43,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:32:43,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:32:43,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:32:43,641 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:32:43,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:32:43,712 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:32:43,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43 WrapperNode [2019-12-07 17:32:43,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:32:43,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:32:43,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:32:43,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:32:43,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:32:43,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:32:43,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:32:43,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:32:43,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... [2019-12-07 17:32:43,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:32:43,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:32:43,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:32:43,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:32:43,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/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 [2019-12-07 17:32:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:32:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:32:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:32:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:32:44,399 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:32:44,400 INFO L287 CfgBuilder]: Removed 352 assume(true) statements. [2019-12-07 17:32:44,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:32:44 BoogieIcfgContainer [2019-12-07 17:32:44,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:32:44,402 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:32:44,402 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:32:44,405 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:32:44,405 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:32:44,405 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:32:43" (1/3) ... [2019-12-07 17:32:44,406 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e91f820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:32:44, skipping insertion in model container [2019-12-07 17:32:44,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:32:44,407 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:32:43" (2/3) ... [2019-12-07 17:32:44,407 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e91f820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:32:44, skipping insertion in model container [2019-12-07 17:32:44,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:32:44,407 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:32:44" (3/3) ... [2019-12-07 17:32:44,409 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2019-12-07 17:32:44,448 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:32:44,448 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:32:44,448 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:32:44,448 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:32:44,448 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:32:44,448 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:32:44,448 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:32:44,448 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:32:44,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2019-12-07 17:32:44,488 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2019-12-07 17:32:44,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:32:44,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:32:44,494 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:32:44,494 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:32:44,494 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:32:44,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states. [2019-12-07 17:32:44,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2019-12-07 17:32:44,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:32:44,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:32:44,503 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:32:44,503 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:32:44,507 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 158#L1003true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 50#L1011true main_#t~ret62 := valid_product_#res;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 101#L837true assume 0 != main_~tmp~10; 135#L811true havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 102#L859-1true [2019-12-07 17:32:44,507 INFO L796 eck$LassoCheckResult]: Loop: 102#L859-1true assume !false; 131#L321true assume test_~splverifierCounter~0 < 4; 205#L322true test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 118#L330true assume !(0 != test_~tmp~6); 105#L330-1true test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 8#L340true assume !(0 != test_~tmp___0~2); 9#L340-1true test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 76#L350true assume 0 != test_~tmp___2~0; 44#L356-1true assume !(0 != ~pumpRunning~0); 17#L59true assume !(0 != ~systemActive~0); 112#L66true havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;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; 220#L921-5true __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 100#L859true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 102#L859-1true [2019-12-07 17:32:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:32:44,511 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 17:32:44,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:32:44,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108550259] [2019-12-07 17:32:44,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:32:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:44,720 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:32:44,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:32:44,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1666538037, now seen corresponding path program 1 times [2019-12-07 17:32:44,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:32:44,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884875645] [2019-12-07 17:32:44,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:32:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:44,731 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:32:44,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:32:44,732 INFO L82 PathProgramCache]: Analyzing trace with hash 47740901, now seen corresponding path program 1 times [2019-12-07 17:32:44,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:32:44,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282035178] [2019-12-07 17:32:44,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:32:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:32:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:32:44,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282035178] [2019-12-07 17:32:44,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:32:44,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:32:44,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190810138] [2019-12-07 17:32:44,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:32:44,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:32:44,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:32:44,885 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 6 states. [2019-12-07 17:32:45,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:32:45,045 INFO L93 Difference]: Finished difference Result 492 states and 714 transitions. [2019-12-07 17:32:45,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:32:45,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 714 transitions. [2019-12-07 17:32:45,054 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 321 [2019-12-07 17:32:45,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 471 states and 693 transitions. [2019-12-07 17:32:45,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 471 [2019-12-07 17:32:45,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 471 [2019-12-07 17:32:45,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 693 transitions. [2019-12-07 17:32:45,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:32:45,068 INFO L688 BuchiCegarLoop]: Abstraction has 471 states and 693 transitions. [2019-12-07 17:32:45,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 693 transitions. [2019-12-07 17:32:45,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 258. [2019-12-07 17:32:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-12-07 17:32:45,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 378 transitions. [2019-12-07 17:32:45,101 INFO L711 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2019-12-07 17:32:45,102 INFO L591 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2019-12-07 17:32:45,102 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:32:45,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 378 transitions. [2019-12-07 17:32:45,104 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2019-12-07 17:32:45,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:32:45,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:32:45,104 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:32:45,105 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:32:45,105 INFO L794 eck$LassoCheckResult]: Stem: 877#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 741#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 742#L1003 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 811#L1011 main_#t~ret62 := valid_product_#res;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 812#L837 assume 0 != main_~tmp~10; 871#L811 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 787#L859-1 [2019-12-07 17:32:45,105 INFO L796 eck$LassoCheckResult]: Loop: 787#L859-1 assume !false; 872#L321 assume test_~splverifierCounter~0 < 4; 907#L322 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 893#L330 assume !(0 != test_~tmp~6); 777#L330-1 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 743#L340 assume !(0 != test_~tmp___0~2); 744#L340-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 746#L350 assume 0 != test_~tmp___2~0; 801#L356-1 assume !(0 != ~pumpRunning~0); 760#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 761#L143 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 875#L117-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 913#L91-3 assume !(0 == ~pumpRunning~0); 779#L66 havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;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; 884#L921-5 __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 870#L859 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 787#L859-1 [2019-12-07 17:32:45,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:32:45,105 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 17:32:45,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:32:45,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244865474] [2019-12-07 17:32:45,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:32:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:45,164 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:32:45,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:32:45,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1439331007, now seen corresponding path program 1 times [2019-12-07 17:32:45,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:32:45,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552248520] [2019-12-07 17:32:45,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:32:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:32:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:32:45,175 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552248520] [2019-12-07 17:32:45,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:32:45,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:32:45,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787392547] [2019-12-07 17:32:45,176 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:32:45,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:32:45,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:32:45,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:32:45,176 INFO L87 Difference]: Start difference. First operand 258 states and 378 transitions. cyclomatic complexity: 123 Second operand 3 states. [2019-12-07 17:32:45,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:32:45,259 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2019-12-07 17:32:45,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:32:45,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 346 transitions. [2019-12-07 17:32:45,262 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2019-12-07 17:32:45,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 252 states and 346 transitions. [2019-12-07 17:32:45,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 252 [2019-12-07 17:32:45,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 252 [2019-12-07 17:32:45,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 252 states and 346 transitions. [2019-12-07 17:32:45,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:32:45,266 INFO L688 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2019-12-07 17:32:45,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states and 346 transitions. [2019-12-07 17:32:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-12-07 17:32:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-12-07 17:32:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 346 transitions. [2019-12-07 17:32:45,275 INFO L711 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2019-12-07 17:32:45,275 INFO L591 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2019-12-07 17:32:45,275 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 17:32:45,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 346 transitions. [2019-12-07 17:32:45,276 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2019-12-07 17:32:45,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:32:45,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:32:45,277 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:32:45,277 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:32:45,277 INFO L794 eck$LassoCheckResult]: Stem: 1427#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(102, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 3 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(80, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(117, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(109, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(112, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(32, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1294#L-1 havoc main_#res;havoc main_#t~ret62, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 1295#L1003 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1357#L1011 main_#t~ret62 := valid_product_#res;main_~tmp~10 := main_#t~ret62;havoc main_#t~ret62; 1361#L837 assume 0 != main_~tmp~10; 1279#L811 havoc test_#t~nondet23, test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1280#L859-1 [2019-12-07 17:32:45,278 INFO L796 eck$LassoCheckResult]: Loop: 1280#L859-1 assume !false; 1274#L321 assume test_~splverifierCounter~0 < 4; 1275#L322 test_~tmp~6 := test_#t~nondet23;havoc test_#t~nondet23; 1425#L330 assume !(0 != test_~tmp~6); 1325#L330-1 test_~tmp___0~2 := test_#t~nondet24;havoc test_#t~nondet24; 1291#L340 assume !(0 != test_~tmp___0~2); 1292#L340-1 test_~tmp___2~0 := test_#t~nondet25;havoc test_#t~nondet25; 1296#L350 assume 0 != test_~tmp___2~0; 1346#L356-1 assume !(0 != ~pumpRunning~0); 1317#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret2, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1318#L143 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret1, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1287#L117-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret0, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1288#L91-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret21, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1392#L961-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1393#L966-3 isHighWaterLevel_#t~ret21 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret21;havoc isHighWaterLevel_#t~ret21; 1352#L262-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1349#L262-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1330#L268-3 processEnvironment__wrappee__highWaterSensor_#t~ret0 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret0;havoc processEnvironment__wrappee__highWaterSensor_#t~ret0; 1268#L95-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1269#L66 havoc __utac_acc__Specification1_spec__1_#t~ret63, __utac_acc__Specification1_spec__1_#t~ret64, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;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; 1429#L921-5 __utac_acc__Specification1_spec__1_#t~ret63 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret63;havoc __utac_acc__Specification1_spec__1_#t~ret63; 1424#L859 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 1280#L859-1 [2019-12-07 17:32:45,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:32:45,278 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 17:32:45,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:32:45,278 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743862985] [2019-12-07 17:32:45,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:32:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:45,327 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:32:45,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:32:45,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1579572237, now seen corresponding path program 1 times [2019-12-07 17:32:45,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:32:45,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066878242] [2019-12-07 17:32:45,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:32:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:45,337 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:32:45,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:32:45,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1462089933, now seen corresponding path program 1 times [2019-12-07 17:32:45,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:32:45,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906380302] [2019-12-07 17:32:45,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:32:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:32:45,389 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:33:04,619 WARN L192 SmtUtils]: Spent 19.11 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 17:33:17,388 WARN L192 SmtUtils]: Spent 12.77 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 17:33:17,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:33:17 BoogieIcfgContainer [2019-12-07 17:33:17,441 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:33:17,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:33:17,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:33:17,441 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:33:17,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:32:44" (3/4) ... [2019-12-07 17:33:17,443 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:33:17,479 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8aec34f7-9460-4c38-8965-a9af97107d23/bin/uautomizer/witness.graphml [2019-12-07 17:33:17,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:33:17,480 INFO L168 Benchmark]: Toolchain (without parser) took 34099.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -57.1 MB). Peak memory consumption was 85.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:33:17,480 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:33:17,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:33:17,481 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:33:17,481 INFO L168 Benchmark]: Boogie Preprocessor took 43.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:33:17,482 INFO L168 Benchmark]: RCFGBuilder took 588.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 967.5 MB in the end (delta: 89.1 MB). Peak memory consumption was 89.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:33:17,482 INFO L168 Benchmark]: BuchiAutomizer took 33039.14 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 967.5 MB in the beginning and 1.0 GB in the end (delta: -38.0 MB). Peak memory consumption was 214.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:33:17,482 INFO L168 Benchmark]: Witness Printer took 38.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:33:17,484 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 588.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 967.5 MB in the end (delta: 89.1 MB). Peak memory consumption was 89.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 33039.14 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 59.2 MB). Free memory was 967.5 MB in the beginning and 1.0 GB in the end (delta: -38.0 MB). Peak memory consumption was 214.3 MB. Max. memory is 11.5 GB. * Witness Printer took 38.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 32.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 213 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 258 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 550 SDtfs, 1444 SDslu, 1274 SDs, 0 SdLazy, 85 SolverSat, 44 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: 320]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=2075} State at position 1 is {NULL=0, NULL=0, NULL=2083, NULL=2079, NULL=0, NULL=2075, NULL=2100, NULL=0, retValue_acc=0, NULL=2082, retValue_acc=1, NULL=2090, methaneLevelCritical=0, NULL=2086, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ccfc234=0, NULL=0, retValue_acc=0, tmp=0, NULL=0, NULL=2097, tmp___1=0, NULL=0, NULL=0, tmp=0, NULL=2099, cleanupTimeShifts=4, tmp=0, tmp___0=0, NULL=2080, NULL=2087, NULL=2096, tmp=1, NULL=0, systemActive=1, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@192ee23f=0, NULL=0, NULL=2088, NULL=0, retValue_acc=0, NULL=0, NULL=2098, \result=0, NULL=0, NULL=2093, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=2095, head=0, pumpRunning=0, NULL=2081, NULL=2091, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@486e5efe=0, NULL=2077, NULL=2084, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c0f60bf=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32810d0c=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56d58a47=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16563e08=0, NULL=0, \result=1, NULL=2089, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7477b5c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e6d931b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ebe3db1=0, NULL=0, tmp=1, NULL=0, tmp___2=59, tmp___0=0, retValue_acc=1, splverifierCounter=0, NULL=0, \result=0, NULL=2076, NULL=2078, NULL=2085, tmp=0, head=0, tmp=0, NULL=0, NULL=2092, NULL=2094, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7080686b=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L555] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L752] int cleanupTimeShifts = 4; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; [L828] int retValue_acc ; [L829] int tmp ; [L1007] int retValue_acc ; [L1010] retValue_acc = 1 [L1011] return (retValue_acc); [L835] tmp = valid_product() [L837] COND TRUE \read(tmp) [L311] int splverifierCounter ; [L312] int tmp ; [L313] int tmp___0 ; [L314] int tmp___1 ; [L315] int tmp___2 ; [L318] splverifierCounter = 0 Loop: [L320] COND TRUE 1 [L322] COND TRUE splverifierCounter < 4 [L328] tmp = __VERIFIER_nondet_int() [L330] COND FALSE !(\read(tmp)) [L338] tmp___0 = __VERIFIER_nondet_int() [L340] COND FALSE !(\read(tmp___0)) [L348] tmp___2 = __VERIFIER_nondet_int() [L350] COND TRUE \read(tmp___2) [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L140] int tmp ; [L143] COND FALSE !(\read(pumpRunning)) [L114] int tmp ; [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; [L91] COND TRUE ! pumpRunning [L254] int retValue_acc ; [L255] int tmp ; [L256] int tmp___0 ; [L958] int retValue_acc ; [L961] COND TRUE waterLevel < 2 [L962] retValue_acc = 1 [L963] return (retValue_acc); [L260] tmp = isHighWaterSensorDry() [L262] COND TRUE \read(tmp) [L263] tmp___0 = 0 [L267] retValue_acc = tmp___0 [L268] return (retValue_acc); [L93] tmp = isHighWaterLevel() [L95] COND FALSE !(\read(tmp)) [L852] int tmp ; [L853] int tmp___0 ; [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); [L857] tmp = isMethaneLevelCritical() [L859] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...