./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1610387a50b580a3de8e20f991e711af2b541458 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:42,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:42,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:42,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:42,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:42,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:42,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:42,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:42,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:42,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:42,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:42,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:42,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:42,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:42,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:42,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:42,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:42,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:42,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:42,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:42,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:42,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:42,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:42,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:42,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:42,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:42,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:42,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:42,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:42,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:42,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:42,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:42,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:42,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:42,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:42,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:42,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:42,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:42,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:42,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:42,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:42,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:42,940 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:42,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:42,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:42,941 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:42,942 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:42,942 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:42,942 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:42,942 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:42,943 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:42,943 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:42,943 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:42,943 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:42,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:42,944 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:42,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:42,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:42,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:42,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:42,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:42,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:42,946 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:42,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:42,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:42,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:42,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:42,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:42,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:42,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:42,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:42,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:42,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:42,948 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:42,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:42,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:42,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:42,949 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan 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(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 1610387a50b580a3de8e20f991e711af2b541458 [2019-10-22 11:25:42,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:43,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:43,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:43,010 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:43,010 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:43,011 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-10-22 11:25:43,073 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/data/965255872/6c5121f0144a4002aa77fc0860f36b0f/FLAGd25607649 [2019-10-22 11:25:43,581 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:43,582 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-10-22 11:25:43,593 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/data/965255872/6c5121f0144a4002aa77fc0860f36b0f/FLAGd25607649 [2019-10-22 11:25:43,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/data/965255872/6c5121f0144a4002aa77fc0860f36b0f [2019-10-22 11:25:43,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:43,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:43,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:43,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:43,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:43,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:43" (1/1) ... [2019-10-22 11:25:43,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a99c76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:43, skipping insertion in model container [2019-10-22 11:25:43,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:43" (1/1) ... [2019-10-22 11:25:43,890 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:43,949 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:44,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:44,389 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:44,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:44,514 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:44,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44 WrapperNode [2019-10-22 11:25:44,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:44,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:44,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:44,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:44,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:44,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:44,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:44,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:44,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:44,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:44,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:44,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:44,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:44,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:44,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:25:44,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:44,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:45,374 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:45,374 INFO L284 CfgBuilder]: Removed 106 assume(true) statements. [2019-10-22 11:25:45,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:45 BoogieIcfgContainer [2019-10-22 11:25:45,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:45,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:45,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:45,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:45,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:43" (1/3) ... [2019-10-22 11:25:45,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be4bcdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:45, skipping insertion in model container [2019-10-22 11:25:45,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (2/3) ... [2019-10-22 11:25:45,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be4bcdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:45, skipping insertion in model container [2019-10-22 11:25:45,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:45" (3/3) ... [2019-10-22 11:25:45,385 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2019-10-22 11:25:45,396 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:45,404 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:25:45,416 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:25:45,443 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:45,443 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:45,443 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:45,443 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:45,443 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:45,443 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:45,444 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:45,444 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:45,461 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-10-22 11:25:45,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:25:45,468 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:45,469 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:45,471 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:45,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1047706522, now seen corresponding path program 1 times [2019-10-22 11:25:45,486 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:45,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264502222] [2019-10-22 11:25:45,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:45,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:45,751 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264502222] [2019-10-22 11:25:45,752 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:45,752 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:25:45,752 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969798447] [2019-10-22 11:25:45,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:25:45,757 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:45,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:25:45,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:25:45,768 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2019-10-22 11:25:45,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:45,789 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2019-10-22 11:25:45,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:25:45,790 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:25:45,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:45,797 INFO L225 Difference]: With dead ends: 160 [2019-10-22 11:25:45,798 INFO L226 Difference]: Without dead ends: 79 [2019-10-22 11:25:45,800 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:25:45,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-10-22 11:25:45,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-10-22 11:25:45,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-22 11:25:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2019-10-22 11:25:45,839 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2019-10-22 11:25:45,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:45,839 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2019-10-22 11:25:45,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:25:45,839 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2019-10-22 11:25:45,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:25:45,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:45,840 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:45,841 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:45,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:45,841 INFO L82 PathProgramCache]: Analyzing trace with hash 136675769, now seen corresponding path program 1 times [2019-10-22 11:25:45,841 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:45,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624222441] [2019-10-22 11:25:45,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:45,942 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624222441] [2019-10-22 11:25:45,942 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:45,942 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:25:45,943 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016678418] [2019-10-22 11:25:45,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:45,944 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:45,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:45,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:45,945 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2019-10-22 11:25:45,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:45,955 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2019-10-22 11:25:45,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:45,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:25:45,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:45,959 INFO L225 Difference]: With dead ends: 79 [2019-10-22 11:25:45,960 INFO L226 Difference]: Without dead ends: 37 [2019-10-22 11:25:45,960 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:45,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-22 11:25:45,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-10-22 11:25:45,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-22 11:25:45,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-10-22 11:25:45,965 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2019-10-22 11:25:45,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:45,966 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-10-22 11:25:45,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:45,966 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-10-22 11:25:45,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:25:45,968 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:45,969 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:45,969 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:45,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:45,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1444562447, now seen corresponding path program 1 times [2019-10-22 11:25:45,969 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:45,970 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781997879] [2019-10-22 11:25:45,970 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,970 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:46,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:46,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781997879] [2019-10-22 11:25:46,109 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:46,109 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:46,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679238076] [2019-10-22 11:25:46,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:46,110 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:46,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:46,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:46,111 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 6 states. [2019-10-22 11:25:46,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:46,248 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2019-10-22 11:25:46,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:46,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-10-22 11:25:46,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:46,250 INFO L225 Difference]: With dead ends: 124 [2019-10-22 11:25:46,250 INFO L226 Difference]: Without dead ends: 93 [2019-10-22 11:25:46,251 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:25:46,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-10-22 11:25:46,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2019-10-22 11:25:46,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-10-22 11:25:46,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2019-10-22 11:25:46,263 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2019-10-22 11:25:46,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:46,263 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2019-10-22 11:25:46,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:46,263 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2019-10-22 11:25:46,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:25:46,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:46,266 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:46,266 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:46,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:46,267 INFO L82 PathProgramCache]: Analyzing trace with hash -685298349, now seen corresponding path program 1 times [2019-10-22 11:25:46,267 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:46,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325348598] [2019-10-22 11:25:46,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:46,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:46,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325348598] [2019-10-22 11:25:46,401 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:46,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:46,401 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092502698] [2019-10-22 11:25:46,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:46,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:46,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:46,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:46,402 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 5 states. [2019-10-22 11:25:46,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:46,570 INFO L93 Difference]: Finished difference Result 306 states and 467 transitions. [2019-10-22 11:25:46,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:25:46,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 11:25:46,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:46,573 INFO L225 Difference]: With dead ends: 306 [2019-10-22 11:25:46,573 INFO L226 Difference]: Without dead ends: 254 [2019-10-22 11:25:46,574 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:25:46,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-10-22 11:25:46,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 104. [2019-10-22 11:25:46,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-10-22 11:25:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 149 transitions. [2019-10-22 11:25:46,593 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 149 transitions. Word has length 25 [2019-10-22 11:25:46,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:46,593 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 149 transitions. [2019-10-22 11:25:46,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:46,593 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 149 transitions. [2019-10-22 11:25:46,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:25:46,594 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:46,595 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:46,595 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:46,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:46,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1650359957, now seen corresponding path program 1 times [2019-10-22 11:25:46,595 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:46,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324583636] [2019-10-22 11:25:46,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:47,250 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:25:47,251 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:25:47,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:47 BoogieIcfgContainer [2019-10-22 11:25:47,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:47,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:47,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:47,362 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:47,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:45" (3/4) ... [2019-10-22 11:25:47,364 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:25:47,437 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_99cbd01d-6ed1-41f1-b12c-4ffa9a03ec79/bin/utaipan/witness.graphml [2019-10-22 11:25:47,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:47,439 INFO L168 Benchmark]: Toolchain (without parser) took 3566.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 950.0 MB in the beginning and 817.3 MB in the end (delta: 132.7 MB). Peak memory consumption was 254.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,440 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,441 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.00 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,441 INFO L168 Benchmark]: Boogie Preprocessor took 35.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,442 INFO L168 Benchmark]: RCFGBuilder took 756.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,442 INFO L168 Benchmark]: TraceAbstraction took 1984.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 831.3 MB in the end (delta: 201.9 MB). Peak memory consumption was 201.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,442 INFO L168 Benchmark]: Witness Printer took 76.13 ms. Allocated memory is still 1.2 GB. Free memory was 831.3 MB in the beginning and 817.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,444 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 641.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.00 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 756.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1984.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 831.3 MB in the end (delta: 201.9 MB). Peak memory consumption was 201.9 MB. Max. memory is 11.5 GB. * Witness Printer took 76.13 ms. Allocated memory is still 1.2 GB. Free memory was 831.3 MB in the beginning and 817.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 346]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L558] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L755] int waterLevel = 1; [L756] int methaneLevelCritical = 0; [L844] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L917] int retValue_acc ; [L918] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L924] tmp = valid_product() [L926] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] COND TRUE waterLevel < 2 [L774] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L135] COND TRUE \read(systemActive) [L157] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L309] int tmp ; [L310] int tmp___0 ; [L311] int tmp___1 ; [L794] int retValue_acc ; [L797] retValue_acc = methaneLevelCritical [L798] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L315] tmp = isMethaneLevelCritical() [L317] COND FALSE !(\read(tmp)) [L826] int retValue_acc ; [L829] retValue_acc = waterLevel [L830] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] tmp___0 = getWaterLevel() [L323] COND TRUE tmp___0 == 2 [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] tmp___1 = isPumpRunning() [L327] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L346] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 297 SDtfs, 440 SDslu, 470 SDs, 0 SdLazy, 62 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 185 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3741 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...