./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.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_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/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 407d2ed2af07127fb49dbf31f1dfe014dd6d299c .......................................................................................................................................................................................................................................................................................................................................................... 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 17:23:16,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:23:16,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:23:16,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:23:16,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:23:16,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:23:16,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:23:16,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:23:16,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:23:16,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:23:16,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:23:16,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:23:16,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:23:16,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:23:16,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:23:16,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:23:16,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:23:16,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:23:16,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:23:16,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:23:16,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:23:16,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:23:16,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:23:16,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:23:16,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:23:16,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:23:16,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:23:16,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:23:16,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:23:16,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:23:16,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:23:16,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:23:16,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:23:16,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:23:16,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:23:16,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:23:16,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:23:16,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:23:16,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:23:16,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:23:16,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:23:16,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 17:23:16,546 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:23:16,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:23:16,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:23:16,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:23:16,548 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:23:16,548 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 17:23:16,548 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 17:23:16,548 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 17:23:16,548 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 17:23:16,549 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 17:23:16,549 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 17:23:16,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:23:16,549 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:23:16,549 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:23:16,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:23:16,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:23:16,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:23:16,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 17:23:16,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 17:23:16,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 17:23:16,551 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:23:16,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:23:16,551 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 17:23:16,551 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:23:16,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 17:23:16,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:23:16,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:23:16,552 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 17:23:16,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:23:16,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:23:16,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:23:16,553 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 17:23:16,554 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 17:23:16,554 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_ae824431-7ab3-49d3-a6e5-418f4df859fe/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 -> 407d2ed2af07127fb49dbf31f1dfe014dd6d299c [2019-12-07 17:23:16,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:23:16,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:23:16,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:23:16,677 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:23:16,677 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:23:16,678 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c [2019-12-07 17:23:16,716 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/data/ede2e4f40/d815811f2779401ca459fdd3dcbd52b4/FLAGd8000dd96 [2019-12-07 17:23:17,190 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:23:17,191 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/sv-benchmarks/c/product-lines/minepump_spec4_product16.cil.c [2019-12-07 17:23:17,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/data/ede2e4f40/d815811f2779401ca459fdd3dcbd52b4/FLAGd8000dd96 [2019-12-07 17:23:17,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/data/ede2e4f40/d815811f2779401ca459fdd3dcbd52b4 [2019-12-07 17:23:17,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:23:17,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:23:17,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:23:17,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:23:17,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:23:17,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:23:17" (1/1) ... [2019-12-07 17:23:17,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9abd61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:17, skipping insertion in model container [2019-12-07 17:23:17,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:23:17" (1/1) ... [2019-12-07 17:23:17,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:23:17,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:23:17,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:23:17,948 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:23:17,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:23:18,013 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:23:18,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18 WrapperNode [2019-12-07 17:23:18,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:23:18,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:23:18,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:23:18,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:23:18,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... [2019-12-07 17:23:18,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... [2019-12-07 17:23:18,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:23:18,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:23:18,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:23:18,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:23:18,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... [2019-12-07 17:23:18,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... [2019-12-07 17:23:18,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... [2019-12-07 17:23:18,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... [2019-12-07 17:23:18,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... [2019-12-07 17:23:18,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... [2019-12-07 17:23:18,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... [2019-12-07 17:23:18,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:23:18,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:23:18,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:23:18,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:23:18,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/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 17:23:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:23:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 17:23:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:23:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:23:18,452 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:23:18,452 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-12-07 17:23:18,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:23:18 BoogieIcfgContainer [2019-12-07 17:23:18,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:23:18,454 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 17:23:18,454 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 17:23:18,456 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 17:23:18,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:23:18,457 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 05:23:17" (1/3) ... [2019-12-07 17:23:18,457 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61bd2145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:23:18, skipping insertion in model container [2019-12-07 17:23:18,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:23:18,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:23:18" (2/3) ... [2019-12-07 17:23:18,458 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61bd2145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 05:23:18, skipping insertion in model container [2019-12-07 17:23:18,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 17:23:18,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:23:18" (3/3) ... [2019-12-07 17:23:18,459 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2019-12-07 17:23:18,486 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 17:23:18,486 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 17:23:18,486 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 17:23:18,487 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:23:18,487 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:23:18,487 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 17:23:18,487 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:23:18,487 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 17:23:18,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2019-12-07 17:23:18,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-12-07 17:23:18,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:23:18,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:23:18,518 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:23:18,518 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:23:18,518 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 17:23:18,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2019-12-07 17:23:18,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2019-12-07 17:23:18,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:23:18,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:23:18,522 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:23:18,523 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:23:18,526 INFO L794 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 12#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 18#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 10#L73true main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 37#L615true assume 0 != main_~tmp~3; 70#L591true havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 50#L825-1true [2019-12-07 17:23:18,526 INFO L796 eck$LassoCheckResult]: Loop: 50#L825-1true assume !false; 55#L854true assume test_~splverifierCounter~0 < 4; 6#L855true test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 35#L863true assume !(0 != test_~tmp~7); 15#L863-1true test_~tmp___0~1 := test_#t~nondet69;havoc test_#t~nondet69; 60#L873true assume !(0 != test_~tmp___0~1); 62#L873-1true test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 44#L883true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 69#L891-1true assume !(0 != ~pumpRunning~0); 33#L651true assume !(0 != ~systemActive~0); 19#L658true havoc __utac_acc__Specification4_spec__1_#t~ret66, __utac_acc__Specification4_spec__1_#t~ret67, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 51#L525true __utac_acc__Specification4_spec__1_#t~ret66 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret66;havoc __utac_acc__Specification4_spec__1_#t~ret66; 48#L825true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 50#L825-1true [2019-12-07 17:23:18,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:23:18,530 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 17:23:18,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:23:18,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263662613] [2019-12-07 17:23:18,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:23:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:23:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:23:18,725 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:23:18,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:23:18,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1672356212, now seen corresponding path program 1 times [2019-12-07 17:23:18,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:23:18,726 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892015415] [2019-12-07 17:23:18,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:23:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:23:18,760 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 17:23:18,760 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892015415] [2019-12-07 17:23:18,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:23:18,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:23:18,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365514414] [2019-12-07 17:23:18,764 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 17:23:18,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:23:18,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:23:18,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:23:18,776 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2019-12-07 17:23:18,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:23:18,818 INFO L93 Difference]: Finished difference Result 130 states and 180 transitions. [2019-12-07 17:23:18,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:23:18,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 180 transitions. [2019-12-07 17:23:18,823 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 82 [2019-12-07 17:23:18,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 116 states and 165 transitions. [2019-12-07 17:23:18,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2019-12-07 17:23:18,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2019-12-07 17:23:18,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 165 transitions. [2019-12-07 17:23:18,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 17:23:18,830 INFO L688 BuchiCegarLoop]: Abstraction has 116 states and 165 transitions. [2019-12-07 17:23:18,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 165 transitions. [2019-12-07 17:23:18,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2019-12-07 17:23:18,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-12-07 17:23:18,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2019-12-07 17:23:18,855 INFO L711 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2019-12-07 17:23:18,855 INFO L591 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2019-12-07 17:23:18,855 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 17:23:18,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2019-12-07 17:23:18,856 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2019-12-07 17:23:18,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 17:23:18,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 17:23:18,857 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 17:23:18,857 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:23:18,857 INFO L794 eck$LassoCheckResult]: Stem: 250#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(30);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(9);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(21);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(30);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(9);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(25);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(13);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string39.base, #t~string39.offset, 1);call write~init~int(77, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(101, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(116, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(104, #t~string39.base, 4 + #t~string39.offset, 1);call write~init~int(58, #t~string39.base, 5 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 6 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string41.base, #t~string41.offset, 1);call write~init~int(82, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(73, #t~string41.base, 2 + #t~string41.offset, 1);call write~init~int(84, #t~string41.base, 3 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 4 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string43.base, #t~string43.offset, 1);call write~init~int(75, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 2 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string45.base, #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 1 + #t~string45.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 225#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 226#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 221#L73 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 222#L615 assume 0 != main_~tmp~3; 251#L591 havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 270#L825-1 [2019-12-07 17:23:18,857 INFO L796 eck$LassoCheckResult]: Loop: 270#L825-1 assume !false; 272#L854 assume test_~splverifierCounter~0 < 4; 277#L855 test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 320#L863 assume !(0 != test_~tmp~7); 318#L863-1 test_~tmp___0~1 := test_#t~nondet69;havoc test_#t~nondet69; 317#L873 assume !(0 != test_~tmp___0~1); 315#L873-1 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 314#L883 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 264#L891-1 assume !(0 != ~pumpRunning~0); 311#L651 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 308#L683 assume !(0 != ~pumpRunning~0); 306#L658 havoc __utac_acc__Specification4_spec__1_#t~ret66, __utac_acc__Specification4_spec__1_#t~ret67, __utac_acc__Specification4_spec__1_~tmp~6, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~6;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 305#L525 __utac_acc__Specification4_spec__1_#t~ret66 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~6 := __utac_acc__Specification4_spec__1_#t~ret66;havoc __utac_acc__Specification4_spec__1_#t~ret66; 269#L825 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6); 270#L825-1 [2019-12-07 17:23:18,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:23:18,858 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 17:23:18,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:23:18,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475843433] [2019-12-07 17:23:18,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:23:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:23:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:23:18,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:23:18,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:23:18,946 INFO L82 PathProgramCache]: Analyzing trace with hash -323963301, now seen corresponding path program 1 times [2019-12-07 17:23:18,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:23:18,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314649038] [2019-12-07 17:23:18,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:23:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:23:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:23:18,956 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:23:18,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:23:18,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1279076225, now seen corresponding path program 1 times [2019-12-07 17:23:18,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:23:18,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136411248] [2019-12-07 17:23:18,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:23:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:23:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:23:19,035 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:23:44,494 WARN L192 SmtUtils]: Spent 25.38 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 17:23:56,655 WARN L192 SmtUtils]: Spent 12.16 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 17:23:56,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 05:23:56 BoogieIcfgContainer [2019-12-07 17:23:56,715 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 17:23:56,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:23:56,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:23:56,716 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:23:56,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:23:18" (3/4) ... [2019-12-07 17:23:56,718 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 17:23:56,752 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ae824431-7ab3-49d3-a6e5-418f4df859fe/bin/uautomizer/witness.graphml [2019-12-07 17:23:56,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:23:56,753 INFO L168 Benchmark]: Toolchain (without parser) took 39050.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:23:56,753 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:23:56,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -134.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:56,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.75 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:56,754 INFO L168 Benchmark]: Boogie Preprocessor took 23.39 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:56,755 INFO L168 Benchmark]: RCFGBuilder took 377.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:56,755 INFO L168 Benchmark]: BuchiAutomizer took 38261.65 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 36.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -88.4 MB). Peak memory consumption was 239.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:56,755 INFO L168 Benchmark]: Witness Printer took 36.30 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: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:23:56,757 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -134.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.75 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.39 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 377.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38261.65 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 36.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -88.4 MB). Peak memory consumption was 239.9 MB. Max. memory is 11.5 GB. * Witness Printer took 36.30 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: 2.2 MB). Peak memory consumption was 2.2 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 114 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 38.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 114 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 88 SDslu, 80 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 853]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4665} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64992a11=0, NULL=0, NULL=12607, NULL=0, NULL=4665, NULL=0, NULL=0, NULL=0, NULL=12602, retValue_acc=0, NULL=0, methaneLevelCritical=0, NULL=4674, NULL=0, NULL=8145, NULL=8144, tmp=0, tmp___1=0, NULL=8147, NULL=4668, NULL=8149, tmp___0=0, NULL=8150, NULL=4671, cleanupTimeShifts=4, NULL=12603, NULL=12611, NULL=12608, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72b71f03=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=12606, \result=0, NULL=4667, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3af0fed4=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dcf10bd=0, NULL=0, NULL=12604, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bf25bba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@529185fd=52, NULL=8146, tmp=1, retValue_acc=1, retValue_acc=1, tmp___2=52, NULL=4673, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@284b2436=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66189b0c=0, NULL=12605, head=0, tmp=0, NULL=0, NULL=8148, NULL=0, NULL=12601, NULL=0, NULL=4669, NULL=0, NULL=0, NULL=0, NULL=0, NULL=4666, NULL=12610, NULL=12609} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L530] int cleanupTimeShifts = 4; [L643] int pumpRunning = 0; [L644] int systemActive = 1; [L606] int retValue_acc ; [L607] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L844] int splverifierCounter ; [L845] int tmp ; [L846] int tmp___0 ; [L847] int tmp___1 ; [L848] int tmp___2 ; [L851] splverifierCounter = 0 Loop: [L853] COND TRUE 1 [L855] COND TRUE splverifierCounter < 4 [L861] tmp = __VERIFIER_nondet_int() [L863] COND FALSE !(\read(tmp)) [L871] tmp___0 = __VERIFIER_nondet_int() [L873] COND FALSE !(\read(tmp___0)) [L881] tmp___2 = __VERIFIER_nondet_int() [L883] COND TRUE \read(tmp___2) [L812] systemActive = 1 [L651] COND FALSE !(\read(pumpRunning)) [L658] COND TRUE \read(systemActive) [L680] int tmp ; [L683] COND FALSE !(\read(pumpRunning)) [L818] int tmp ; [L819] int tmp___0 ; [L521] int retValue_acc ; [L524] retValue_acc = waterLevel [L525] return (retValue_acc); [L823] tmp = getWaterLevel() [L825] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...