./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/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 730b837dafcd2995b5acc94906fc5437a0c170a6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:27:52,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:27:52,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:27:52,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:27:52,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:27:52,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:27:52,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:27:52,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:27:52,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:27:52,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:27:52,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:27:52,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:27:52,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:27:52,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:27:52,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:27:52,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:27:52,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:27:52,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:27:52,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:27:52,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:27:52,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:27:52,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:27:52,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:27:52,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:27:52,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:27:52,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:27:52,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:27:52,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:27:52,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:27:52,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:27:52,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:27:52,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:27:52,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:27:52,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:27:52,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:27:52,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:27:52,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:27:52,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:27:52,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:27:52,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:27:52,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:27:52,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:27:52,693 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:27:52,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:27:52,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:27:52,703 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:27:52,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:27:52,705 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:27:52,706 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:27:52,706 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:27:52,706 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:27:52,706 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:27:52,707 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:27:52,707 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:27:52,707 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:27:52,707 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:27:52,707 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:27:52,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:27:52,709 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:27:52,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:27:52,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:27:52,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:27:52,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:27:52,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:27:52,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:27:52,711 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:27:52,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:27:52,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:27:52,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:27:52,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:27:52,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:27:52,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:27:52,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:27:52,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:27:52,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:27:52,713 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:27:52,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:27:52,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:27:52,714 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:27:52,714 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/run_dir_1905011e-9104-4337-9f97-23667d7f5869/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 -> 730b837dafcd2995b5acc94906fc5437a0c170a6 [2019-11-26 02:27:52,875 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:27:52,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:27:52,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:27:52,891 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:27:52,892 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:27:52,892 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c [2019-11-26 02:27:52,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/data/0ba07e406/bc3344dc40f24c63b290e5834673e7b6/FLAG013b4deef [2019-11-26 02:27:53,429 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:27:53,429 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c [2019-11-26 02:27:53,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/data/0ba07e406/bc3344dc40f24c63b290e5834673e7b6/FLAG013b4deef [2019-11-26 02:27:53,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/data/0ba07e406/bc3344dc40f24c63b290e5834673e7b6 [2019-11-26 02:27:53,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:27:53,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:27:53,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:27:53,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:27:53,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:27:53,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:53,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df0d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53, skipping insertion in model container [2019-11-26 02:27:53,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:53,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:27:53,510 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:27:53,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:27:53,840 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:27:53,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:27:53,989 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:27:53,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53 WrapperNode [2019-11-26 02:27:53,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:27:53,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:27:53,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:27:53,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:27:53,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:54,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:54,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:27:54,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:27:54,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:27:54,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:27:54,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:54,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:54,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:54,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:54,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:54,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:54,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... [2019-11-26 02:27:54,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:27:54,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:27:54,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:27:54,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:27:54,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/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 [2019-11-26 02:27:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:27:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:27:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:27:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:27:57,528 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:27:57,528 INFO L284 CfgBuilder]: Removed 284 assume(true) statements. [2019-11-26 02:27:57,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:27:57 BoogieIcfgContainer [2019-11-26 02:27:57,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:27:57,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:27:57,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:27:57,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:27:57,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:27:53" (1/3) ... [2019-11-26 02:27:57,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f612eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:27:57, skipping insertion in model container [2019-11-26 02:27:57,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:27:53" (2/3) ... [2019-11-26 02:27:57,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f612eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:27:57, skipping insertion in model container [2019-11-26 02:27:57,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:27:57" (3/3) ... [2019-11-26 02:27:57,536 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2019-11-26 02:27:57,544 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:27:57,551 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:27:57,560 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:27:57,586 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:27:57,587 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:27:57,587 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:27:57,587 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:27:57,587 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:27:57,587 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:27:57,587 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:27:57,587 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:27:57,601 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-26 02:27:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:27:57,606 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:27:57,607 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:27:57,607 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:27:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:27:57,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1299915309, now seen corresponding path program 1 times [2019-11-26 02:27:57,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:27:57,621 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966311146] [2019-11-26 02:27:57,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:27:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:27:57,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:27:57,889 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966311146] [2019-11-26 02:27:57,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:27:57,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:27:57,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006449839] [2019-11-26 02:27:57,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:27:57,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:27:57,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:27:57,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:27:57,909 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-26 02:27:57,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:27:57,934 INFO L93 Difference]: Finished difference Result 50 states and 75 transitions. [2019-11-26 02:27:57,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:27:57,936 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-26 02:27:57,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:27:57,947 INFO L225 Difference]: With dead ends: 50 [2019-11-26 02:27:57,947 INFO L226 Difference]: Without dead ends: 24 [2019-11-26 02:27:57,951 INFO L630 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 [2019-11-26 02:27:57,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-26 02:27:57,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-26 02:27:57,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-26 02:27:57,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-26 02:27:57,987 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 8 [2019-11-26 02:27:57,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:27:57,988 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-26 02:27:57,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:27:57,988 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-26 02:27:57,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:27:57,989 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:27:57,989 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:27:57,990 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:27:57,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:27:57,990 INFO L82 PathProgramCache]: Analyzing trace with hash -662224143, now seen corresponding path program 1 times [2019-11-26 02:27:57,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:27:57,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971156832] [2019-11-26 02:27:57,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:27:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:27:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:27:58,160 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971156832] [2019-11-26 02:27:58,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:27:58,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:27:58,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860210881] [2019-11-26 02:27:58,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:27:58,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:27:58,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:27:58,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:27:58,162 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 3 states. [2019-11-26 02:27:58,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:27:58,228 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2019-11-26 02:27:58,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:27:58,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-26 02:27:58,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:27:58,230 INFO L225 Difference]: With dead ends: 46 [2019-11-26 02:27:58,230 INFO L226 Difference]: Without dead ends: 40 [2019-11-26 02:27:58,231 INFO L630 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 [2019-11-26 02:27:58,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-26 02:27:58,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-26 02:27:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-26 02:27:58,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2019-11-26 02:27:58,237 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 8 [2019-11-26 02:27:58,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:27:58,237 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2019-11-26 02:27:58,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:27:58,238 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2019-11-26 02:27:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:27:58,238 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:27:58,238 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-26 02:27:58,239 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:27:58,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:27:58,239 INFO L82 PathProgramCache]: Analyzing trace with hash 755895736, now seen corresponding path program 1 times [2019-11-26 02:27:58,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:27:58,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840003950] [2019-11-26 02:27:58,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:27:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:27:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:27:58,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840003950] [2019-11-26 02:27:58,504 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389928251] [2019-11-26 02:27:58,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:27:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:27:58,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 45 conjunts are in the unsatisfiable core [2019-11-26 02:27:58,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:27:58,760 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:58,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,043 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-11-26 02:27:59,261 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-11-26 02:27:59,423 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 30 [2019-11-26 02:27:59,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,554 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:27:59,649 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:27:59,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,716 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,721 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,726 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,750 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,754 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,760 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,768 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,768 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,943 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:27:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:27:59,953 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1044408978] [2019-11-26 02:27:59,993 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-26 02:27:59,994 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:27:59,999 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:28:00,005 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:28:00,006 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:28:08,611 WARN L192 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 478 [2019-11-26 02:28:10,337 WARN L192 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-26 02:28:10,516 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2019-11-26 02:28:11,157 WARN L192 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 614 DAG size of output: 604 [2019-11-26 02:28:12,212 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:28:14,206 WARN L192 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 395 DAG size of output: 290 [2019-11-26 02:28:18,120 WARN L192 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 486 DAG size of output: 431 [2019-11-26 02:28:19,120 WARN L192 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 148 [2019-11-26 02:28:21,113 WARN L192 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 380 DAG size of output: 287 [2019-11-26 02:28:23,072 WARN L192 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 391 DAG size of output: 293 [2019-11-26 02:28:24,931 WARN L192 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 393 DAG size of output: 288 [2019-11-26 02:28:24,936 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:28:24,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:28:24,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 20 [2019-11-26 02:28:24,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119822901] [2019-11-26 02:28:24,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-26 02:28:24,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:28:24,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-26 02:28:24,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2019-11-26 02:28:24,939 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand 21 states. [2019-11-26 02:28:25,389 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-11-26 02:28:25,772 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 34 [2019-11-26 02:28:26,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:28:26,507 INFO L93 Difference]: Finished difference Result 120 states and 166 transitions. [2019-11-26 02:28:26,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-26 02:28:26,509 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 13 [2019-11-26 02:28:26,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:28:26,509 INFO L225 Difference]: With dead ends: 120 [2019-11-26 02:28:26,509 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:28:26,511 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=359, Invalid=1533, Unknown=0, NotChecked=0, Total=1892 [2019-11-26 02:28:26,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:28:26,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:28:26,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:28:26,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:28:26,511 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-26 02:28:26,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:28:26,511 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:28:26,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-26 02:28:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:28:26,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:28:26,712 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:28:26,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:28:27,102 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 410) no Hoare annotation was computed. [2019-11-26 02:28:27,102 INFO L440 ceAbstractionStarter]: At program point L830(lines 829 878) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~0 ~pumpRunning~0) (= 1 ~methAndRunningLastTime~0) .cse0 (not .cse1)) (and (or .cse1 .cse0) (= 0 ~methAndRunningLastTime~0)))) [2019-11-26 02:28:27,102 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 410) no Hoare annotation was computed. [2019-11-26 02:28:27,103 INFO L440 ceAbstractionStarter]: At program point L937-2(lines 937 951) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~0 ~pumpRunning~0) (= 1 ~methAndRunningLastTime~0) .cse0 (not .cse1)) (and (or .cse1 .cse0) (= 0 ~methAndRunningLastTime~0)))) [2019-11-26 02:28:27,103 INFO L444 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-26 02:28:27,103 INFO L444 ceAbstractionStarter]: For program point L410-1(line 410) no Hoare annotation was computed. [2019-11-26 02:28:27,103 INFO L444 ceAbstractionStarter]: For program point L410-2(line 410) no Hoare annotation was computed. [2019-11-26 02:28:27,103 INFO L440 ceAbstractionStarter]: At program point L544(lines 544 561) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0))) (let ((.cse0 (or .cse1 (not (= 0 ~systemActive~0))))) (or (and .cse0 (= 0 ~methAndRunningLastTime~0)) (and (or (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~3 0) .cse1) .cse0)))) [2019-11-26 02:28:27,103 INFO L440 ceAbstractionStarter]: At program point L544-1(lines 1 1021) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~0 ~pumpRunning~0) (= 1 ~methAndRunningLastTime~0) .cse0 (not .cse1)) (and (or .cse1 .cse0) (= 0 ~methAndRunningLastTime~0)))) [2019-11-26 02:28:27,103 INFO L440 ceAbstractionStarter]: At program point L544-2(lines 544 561) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0))) (let ((.cse0 (or .cse1 (not (= 0 ~systemActive~0))))) (or (and .cse0 (= 0 ~methAndRunningLastTime~0)) (and (or (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~3 0) .cse1) .cse0)))) [2019-11-26 02:28:27,104 INFO L440 ceAbstractionStarter]: At program point L544-3(lines 1 1021) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~0 ~pumpRunning~0) (= 1 ~methAndRunningLastTime~0) .cse0 (not .cse1)) (and (or .cse1 .cse0) (= 0 ~methAndRunningLastTime~0)))) [2019-11-26 02:28:27,104 INFO L440 ceAbstractionStarter]: At program point L544-4(lines 544 561) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0))) (let ((.cse0 (or .cse1 (not (= 0 ~systemActive~0))))) (or (and .cse0 (= 0 ~methAndRunningLastTime~0)) (and (or (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~3 0) .cse1) .cse0)))) [2019-11-26 02:28:27,104 INFO L440 ceAbstractionStarter]: At program point L544-5(lines 1 1021) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~0 ~pumpRunning~0) (= 1 ~methAndRunningLastTime~0) .cse0 (not .cse1)) (and (or .cse1 .cse0) (= 0 ~methAndRunningLastTime~0)))) [2019-11-26 02:28:27,104 INFO L440 ceAbstractionStarter]: At program point L941(lines 941 945) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~0 ~pumpRunning~0) (= 1 ~methAndRunningLastTime~0) .cse0 (not .cse1)) (and (or .cse1 .cse0) (= 0 ~methAndRunningLastTime~0)))) [2019-11-26 02:28:27,104 INFO L440 ceAbstractionStarter]: At program point L1009(lines 1009 1016) the Hoare annotation is: (and (= 1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= ~pumpRunning~0 0) (= 0 ~methAndRunningLastTime~0)) [2019-11-26 02:28:27,104 INFO L447 ceAbstractionStarter]: At program point L1009-1(lines 1009 1016) the Hoare annotation is: true [2019-11-26 02:28:27,104 INFO L444 ceAbstractionStarter]: For program point L548(lines 548 558) no Hoare annotation was computed. [2019-11-26 02:28:27,104 INFO L444 ceAbstractionStarter]: For program point L548-2(lines 548 558) no Hoare annotation was computed. [2019-11-26 02:28:27,105 INFO L444 ceAbstractionStarter]: For program point L548-4(lines 548 558) no Hoare annotation was computed. [2019-11-26 02:28:27,105 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:28:27,105 INFO L440 ceAbstractionStarter]: At program point L879(lines 828 880) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp___0~0 ~pumpRunning~0) (= 1 ~methAndRunningLastTime~0) .cse0 (not .cse1)) (and (or .cse1 .cse0) (= 0 ~methAndRunningLastTime~0)))) [2019-11-26 02:28:27,105 INFO L444 ceAbstractionStarter]: For program point L549(lines 549 555) no Hoare annotation was computed. [2019-11-26 02:28:27,105 INFO L444 ceAbstractionStarter]: For program point L549-2(lines 549 555) no Hoare annotation was computed. [2019-11-26 02:28:27,105 INFO L444 ceAbstractionStarter]: For program point L549-4(lines 549 555) no Hoare annotation was computed. [2019-11-26 02:28:27,105 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:28:27,105 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 410) no Hoare annotation was computed. [2019-11-26 02:28:27,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:28:27 BoogieIcfgContainer [2019-11-26 02:28:27,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:28:27,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:28:27,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:28:27,124 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:28:27,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:27:57" (3/4) ... [2019-11-26 02:28:27,127 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:28:27,147 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 168 nodes and edges [2019-11-26 02:28:27,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2019-11-26 02:28:27,152 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:28:27,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:28:27,156 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:28:27,158 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:28:27,160 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:28:27,282 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1905011e-9104-4337-9f97-23667d7f5869/bin/utaipan/witness.graphml [2019-11-26 02:28:27,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:28:27,283 INFO L168 Benchmark]: Toolchain (without parser) took 33824.12 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 541.1 MB). Free memory was 942.0 MB in the beginning and 1.0 GB in the end (delta: -96.9 MB). Peak memory consumption was 444.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:28:27,283 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-26 02:28:27,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 942.0 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:28:27,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:28:27,284 INFO L168 Benchmark]: Boogie Preprocessor took 92.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2019-11-26 02:28:27,285 INFO L168 Benchmark]: RCFGBuilder took 3362.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.9 MB in the end (delta: 187.8 MB). Peak memory consumption was 244.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:28:27,285 INFO L168 Benchmark]: TraceAbstraction took 29592.83 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 366.0 MB). Free memory was 957.9 MB in the beginning and 1.1 GB in the end (delta: -109.6 MB). Peak memory consumption was 256.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:28:27,286 INFO L168 Benchmark]: Witness Printer took 158.71 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:28:27,288 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 528.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 942.0 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 92.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. * RCFGBuilder took 3362.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.9 MB in the end (delta: 187.8 MB). Peak memory consumption was 244.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29592.83 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 366.0 MB). Free memory was 957.9 MB in the beginning and 1.1 GB in the end (delta: -109.6 MB). Peak memory consumption was 256.3 MB. Max. memory is 11.5 GB. * Witness Printer took 158.71 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 410]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 410]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 410]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: (((tmp___0 == pumpRunning && 1 == methAndRunningLastTime) && !(0 == systemActive)) && !(pumpRunning == 0)) || ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) - InvariantResult [Line: 544]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) || ((tmp == 0 || pumpRunning == 0) && (pumpRunning == 0 || !(0 == systemActive))) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((tmp___0 == pumpRunning && 1 == methAndRunningLastTime) && !(0 == systemActive)) && !(pumpRunning == 0)) || ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: (((tmp___0 == pumpRunning && 1 == methAndRunningLastTime) && !(0 == systemActive)) && !(pumpRunning == 0)) || ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) - InvariantResult [Line: 544]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) || ((tmp == 0 || pumpRunning == 0) && (pumpRunning == 0 || !(0 == systemActive))) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((tmp___0 == pumpRunning && 1 == methAndRunningLastTime) && !(0 == systemActive)) && !(pumpRunning == 0)) || ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: (((tmp___0 == pumpRunning && 1 == methAndRunningLastTime) && !(0 == systemActive)) && !(pumpRunning == 0)) || ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) - InvariantResult [Line: 1009]: Loop Invariant Derived loop invariant: ((1 == systemActive && 0 == methaneLevelCritical) && pumpRunning == 0) && 0 == methAndRunningLastTime - InvariantResult [Line: 544]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) || ((tmp == 0 || pumpRunning == 0) && (pumpRunning == 0 || !(0 == systemActive))) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((tmp___0 == pumpRunning && 1 == methAndRunningLastTime) && !(0 == systemActive)) && !(pumpRunning == 0)) || ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) - InvariantResult [Line: 1009]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 828]: Loop Invariant Derived loop invariant: (((tmp___0 == pumpRunning && 1 == methAndRunningLastTime) && !(0 == systemActive)) && !(pumpRunning == 0)) || ((pumpRunning == 0 || !(0 == systemActive)) && 0 == methAndRunningLastTime) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 3 error locations. Result: SAFE, OverallTime: 29.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 88 SDtfs, 252 SDslu, 164 SDs, 0 SdLazy, 283 SolverSat, 287 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=2, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 75 NumberOfFragments, 298 HoareAnnotationTreeSize, 13 FomulaSimplifications, 2823 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 346 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 9300 SizeOfPredicates, 82 NumberOfNonLiveVariables, 354 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 1/15 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 correct! Received shutdown request...