./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.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_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/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 fda6d17e7962e4df44156ef592d697d85d9dd989 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:21:15,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:15,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:15,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:15,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:15,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:15,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:15,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:15,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:15,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:15,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:15,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:15,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:15,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:15,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:15,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:15,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:15,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:15,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:15,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:15,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:15,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:15,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:15,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:15,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:15,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:15,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:15,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:15,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:15,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:15,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:15,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:15,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:15,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:15,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:15,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:15,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:15,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:15,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:15,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:15,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:15,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:15,221 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:15,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:15,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:15,232 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:15,232 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:15,232 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:15,232 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:15,233 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:15,233 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:15,233 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:15,233 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:15,233 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:15,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:15,234 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:15,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:15,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:15,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:15,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:15,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:15,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:15,235 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:15,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:15,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:15,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:15,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:15,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:15,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:15,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:15,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:15,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:15,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:15,237 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:15,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:15,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:15,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:15,237 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_351851ba-808e-4841-b0a5-1f11c1218451/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 -> fda6d17e7962e4df44156ef592d697d85d9dd989 [2019-10-22 11:21:15,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:15,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:15,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:15,287 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:15,287 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:15,288 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-10-22 11:21:15,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/data/221df7494/e2f33f46f710476692e739157823a8db/FLAGa696822ee [2019-10-22 11:21:15,739 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:15,740 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2019-10-22 11:21:15,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/data/221df7494/e2f33f46f710476692e739157823a8db/FLAGa696822ee [2019-10-22 11:21:16,068 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/data/221df7494/e2f33f46f710476692e739157823a8db [2019-10-22 11:21:16,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:16,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:16,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:16,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:16,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:16,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494a0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16, skipping insertion in model container [2019-10-22 11:21:16,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,085 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:16,135 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:16,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:16,509 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:16,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:16,632 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:16,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16 WrapperNode [2019-10-22 11:21:16,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:16,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:16,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:16,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:16,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:16,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:16,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:16,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:16,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... [2019-10-22 11:21:16,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:16,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:16,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:16,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:16,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/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 11:21:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:21:16,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:16,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:17,606 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:17,607 INFO L284 CfgBuilder]: Removed 166 assume(true) statements. [2019-10-22 11:21:17,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:17 BoogieIcfgContainer [2019-10-22 11:21:17,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:17,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:17,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:17,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:17,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:16" (1/3) ... [2019-10-22 11:21:17,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1383e560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:17, skipping insertion in model container [2019-10-22 11:21:17,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:16" (2/3) ... [2019-10-22 11:21:17,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1383e560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:17, skipping insertion in model container [2019-10-22 11:21:17,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:17" (3/3) ... [2019-10-22 11:21:17,617 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2019-10-22 11:21:17,627 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:17,635 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:21:17,647 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:21:17,670 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:17,670 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:17,670 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:17,670 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:17,670 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:17,671 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:17,671 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:17,671 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:17,687 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-10-22 11:21:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:21:17,693 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:17,693 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 11:21:17,695 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:17,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:17,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1240734729, now seen corresponding path program 1 times [2019-10-22 11:21:17,705 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:17,706 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492979024] [2019-10-22 11:21:17,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:17,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:17,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:17,881 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 11:21:17,882 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492979024] [2019-10-22 11:21:17,882 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:17,883 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:17,883 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034506021] [2019-10-22 11:21:17,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:21:17,888 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:17,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:21:17,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:21:17,903 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-10-22 11:21:17,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:17,934 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-10-22 11:21:17,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:21:17,935 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 11:21:17,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:17,945 INFO L225 Difference]: With dead ends: 232 [2019-10-22 11:21:17,945 INFO L226 Difference]: Without dead ends: 115 [2019-10-22 11:21:17,948 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 11:21:17,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-10-22 11:21:17,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-10-22 11:21:17,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-10-22 11:21:17,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-10-22 11:21:17,989 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2019-10-22 11:21:17,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:17,989 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-10-22 11:21:17,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:21:17,989 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-10-22 11:21:17,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:21:17,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:17,991 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 11:21:17,991 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:17,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:17,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1444708423, now seen corresponding path program 1 times [2019-10-22 11:21:17,992 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:17,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465738135] [2019-10-22 11:21:17,992 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:17,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:17,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:18,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465738135] [2019-10-22 11:21:18,104 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:18,105 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:21:18,105 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745242979] [2019-10-22 11:21:18,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:18,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:18,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:18,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:18,107 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2019-10-22 11:21:18,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:18,126 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-10-22 11:21:18,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:18,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:21:18,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:18,130 INFO L225 Difference]: With dead ends: 115 [2019-10-22 11:21:18,131 INFO L226 Difference]: Without dead ends: 49 [2019-10-22 11:21:18,131 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 11:21:18,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-10-22 11:21:18,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-10-22 11:21:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-22 11:21:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-10-22 11:21:18,141 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-10-22 11:21:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:18,142 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-10-22 11:21:18,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-10-22 11:21:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 11:21:18,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:18,142 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 11:21:18,143 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:18,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:18,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1084287686, now seen corresponding path program 1 times [2019-10-22 11:21:18,143 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:18,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295778459] [2019-10-22 11:21:18,144 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:18,144 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:18,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:18,292 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 11:21:18,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295778459] [2019-10-22 11:21:18,293 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:18,293 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:18,293 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516173268] [2019-10-22 11:21:18,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:18,293 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:18,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:18,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:18,294 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2019-10-22 11:21:18,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:18,326 INFO L93 Difference]: Finished difference Result 135 states and 201 transitions. [2019-10-22 11:21:18,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:18,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 11:21:18,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:18,332 INFO L225 Difference]: With dead ends: 135 [2019-10-22 11:21:18,332 INFO L226 Difference]: Without dead ends: 92 [2019-10-22 11:21:18,332 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 11:21:18,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-10-22 11:21:18,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2019-10-22 11:21:18,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-22 11:21:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2019-10-22 11:21:18,347 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 24 [2019-10-22 11:21:18,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:18,347 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2019-10-22 11:21:18,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:18,348 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2019-10-22 11:21:18,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:21:18,348 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:18,349 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 11:21:18,349 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:18,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:18,349 INFO L82 PathProgramCache]: Analyzing trace with hash -857120593, now seen corresponding path program 1 times [2019-10-22 11:21:18,350 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:18,350 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161580693] [2019-10-22 11:21:18,350 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:18,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:18,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:18,436 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 11:21:18,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161580693] [2019-10-22 11:21:18,436 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:18,437 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:21:18,437 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223535822] [2019-10-22 11:21:18,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:21:18,437 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:18,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:21:18,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:21:18,438 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand 3 states. [2019-10-22 11:21:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:18,474 INFO L93 Difference]: Finished difference Result 215 states and 324 transitions. [2019-10-22 11:21:18,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:21:18,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:21:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:18,476 INFO L225 Difference]: With dead ends: 215 [2019-10-22 11:21:18,476 INFO L226 Difference]: Without dead ends: 133 [2019-10-22 11:21:18,476 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 11:21:18,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-10-22 11:21:18,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2019-10-22 11:21:18,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-22 11:21:18,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 191 transitions. [2019-10-22 11:21:18,505 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 191 transitions. Word has length 26 [2019-10-22 11:21:18,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:18,505 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 191 transitions. [2019-10-22 11:21:18,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:21:18,505 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 191 transitions. [2019-10-22 11:21:18,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:21:18,506 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:18,506 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, 1] [2019-10-22 11:21:18,506 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:18,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:18,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1307189925, now seen corresponding path program 1 times [2019-10-22 11:21:18,507 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:18,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507765317] [2019-10-22 11:21:18,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:18,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:18,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:18,599 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 11:21:18,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507765317] [2019-10-22 11:21:18,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:18,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:18,600 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481678536] [2019-10-22 11:21:18,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:18,600 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:18,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:18,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:18,601 INFO L87 Difference]: Start difference. First operand 131 states and 191 transitions. Second operand 5 states. [2019-10-22 11:21:18,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:18,764 INFO L93 Difference]: Finished difference Result 691 states and 1025 transitions. [2019-10-22 11:21:18,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:18,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-10-22 11:21:18,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:18,767 INFO L225 Difference]: With dead ends: 691 [2019-10-22 11:21:18,767 INFO L226 Difference]: Without dead ends: 566 [2019-10-22 11:21:18,768 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 11:21:18,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2019-10-22 11:21:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 222. [2019-10-22 11:21:18,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-10-22 11:21:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 314 transitions. [2019-10-22 11:21:18,795 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 314 transitions. Word has length 27 [2019-10-22 11:21:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:18,796 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 314 transitions. [2019-10-22 11:21:18,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 314 transitions. [2019-10-22 11:21:18,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:21:18,797 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:18,797 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, 1, 1] [2019-10-22 11:21:18,797 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:18,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:18,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1287513629, now seen corresponding path program 1 times [2019-10-22 11:21:18,798 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:18,798 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675975325] [2019-10-22 11:21:18,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:18,799 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:18,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:21:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:21:19,739 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:21:19,740 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:21:19,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:19 BoogieIcfgContainer [2019-10-22 11:21:19,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:19,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:19,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:19,841 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:19,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:17" (3/4) ... [2019-10-22 11:21:19,846 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:21:19,937 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_351851ba-808e-4841-b0a5-1f11c1218451/bin/utaipan/witness.graphml [2019-10-22 11:21:19,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:19,939 INFO L168 Benchmark]: Toolchain (without parser) took 3868.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.5 MB in the beginning and 963.2 MB in the end (delta: -18.7 MB). Peak memory consumption was 130.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,939 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:19,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,940 INFO L168 Benchmark]: Boogie Preprocessor took 52.98 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 11:21:19,941 INFO L168 Benchmark]: RCFGBuilder took 866.09 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: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,941 INFO L168 Benchmark]: TraceAbstraction took 2231.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.2 MB in the end (delta: 79.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,941 INFO L168 Benchmark]: Witness Printer took 96.94 ms. Allocated memory is still 1.2 GB. Free memory was 975.2 MB in the beginning and 963.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:19,945 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 560.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.98 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 866.09 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: 70.7 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2231.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.2 MB in the end (delta: 79.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 11.5 GB. * Witness Printer took 96.94 ms. Allocated memory is still 1.2 GB. Free memory was 975.2 MB in the beginning and 963.2 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L390] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L392] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L367] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L374] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L193] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L451] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 495 SDtfs, 433 SDslu, 383 SDs, 0 SdLazy, 63 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 350 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...