./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.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_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/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 8890a6e15e91dc33e0e8fdcf0ca164911989393b ................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:00,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:00,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:00,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:00,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:00,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:00,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:00,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:00,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:00,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:00,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:00,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:00,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:00,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:00,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:00,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:00,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:00,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:00,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:00,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:00,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:00,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:00,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:00,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:00,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:00,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:00,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:00,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:00,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:00,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:00,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:00,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:00,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:00,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:00,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:00,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:00,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:00,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:00,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:00,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:00,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:00,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:00,196 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:00,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:00,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:00,197 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:00,197 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:00,198 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:00,198 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:00,198 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:00,198 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:00,199 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:00,199 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:00,199 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:00,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:00,200 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:00,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:00,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:00,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:00,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:00,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:00,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:00,202 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:00,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:00,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:00,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:00,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:00,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:00,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:00,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:00,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:00,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:00,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:00,204 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:00,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:00,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:00,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:00,205 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_8efdb2dd-3174-4bd6-81bc-e96973e675b8/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 -> 8890a6e15e91dc33e0e8fdcf0ca164911989393b [2019-10-22 11:25:00,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:00,253 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:00,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:00,261 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:00,262 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:00,262 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2019-10-22 11:25:00,315 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/data/02cf7fcba/b2420dd5428f4d358867c97c9bf75783/FLAG7c9856c6d [2019-10-22 11:25:00,708 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:00,708 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2019-10-22 11:25:00,714 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/data/02cf7fcba/b2420dd5428f4d358867c97c9bf75783/FLAG7c9856c6d [2019-10-22 11:25:01,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/data/02cf7fcba/b2420dd5428f4d358867c97c9bf75783 [2019-10-22 11:25:01,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:01,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:01,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:01,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:01,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:01,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ecb524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01, skipping insertion in model container [2019-10-22 11:25:01,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,125 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:01,143 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:01,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:01,320 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:01,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:01,437 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:01,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01 WrapperNode [2019-10-22 11:25:01,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:01,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:01,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:01,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:01,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:01,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:01,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:01,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:01,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... [2019-10-22 11:25:01,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:01,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:01,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:01,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:01,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:01,726 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:01,726 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:25:01,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:01 BoogieIcfgContainer [2019-10-22 11:25:01,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:01,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:01,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:01,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:01,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:01" (1/3) ... [2019-10-22 11:25:01,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604df584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:01, skipping insertion in model container [2019-10-22 11:25:01,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:01" (2/3) ... [2019-10-22 11:25:01,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604df584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:01, skipping insertion in model container [2019-10-22 11:25:01,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:01" (3/3) ... [2019-10-22 11:25:01,736 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2019-10-22 11:25:01,743 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:01,750 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:25:01,762 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:25:01,787 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:01,787 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:01,787 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:01,787 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:01,788 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:01,788 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:01,788 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:01,788 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:01,804 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-10-22 11:25:01,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:25:01,809 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:01,810 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:01,812 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:01,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1804535397, now seen corresponding path program 1 times [2019-10-22 11:25:01,823 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:01,823 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619623812] [2019-10-22 11:25:01,824 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:01,824 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:01,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:01,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:01,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619623812] [2019-10-22 11:25:01,999 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:02,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:25:02,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653688763] [2019-10-22 11:25:02,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:25:02,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:02,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:25:02,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:02,025 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-10-22 11:25:02,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:02,072 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2019-10-22 11:25:02,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:25:02,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-10-22 11:25:02,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:02,086 INFO L225 Difference]: With dead ends: 29 [2019-10-22 11:25:02,086 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 11:25:02,089 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:25:02,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 11:25:02,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2019-10-22 11:25:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 11:25:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-10-22 11:25:02,129 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2019-10-22 11:25:02,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:02,129 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-10-22 11:25:02,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:25:02,130 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-10-22 11:25:02,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:25:02,130 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:02,130 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:02,131 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:02,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:02,131 INFO L82 PathProgramCache]: Analyzing trace with hash -527269500, now seen corresponding path program 1 times [2019-10-22 11:25:02,131 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:02,131 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519551062] [2019-10-22 11:25:02,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:02,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:02,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:02,546 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 16 [2019-10-22 11:25:02,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:02,555 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519551062] [2019-10-22 11:25:02,555 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:02,556 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:02,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636058488] [2019-10-22 11:25:02,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:25:02,560 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:02,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:25:02,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:25:02,561 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2019-10-22 11:25:02,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:02,680 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-10-22 11:25:02,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:25:02,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 11:25:02,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:02,682 INFO L225 Difference]: With dead ends: 25 [2019-10-22 11:25:02,682 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:25:02,683 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:02,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:25:02,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:25:02,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:25:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:25:02,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-22 11:25:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:02,684 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:25:02,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:25:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:25:02,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:25:02,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:25:02,738 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:25:02,739 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2019-10-22 11:25:02,739 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 47) no Hoare annotation was computed. [2019-10-22 11:25:02,739 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 74) no Hoare annotation was computed. [2019-10-22 11:25:02,739 INFO L446 ceAbstractionStarter]: At program point L73(lines 7 76) the Hoare annotation is: true [2019-10-22 11:25:02,739 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:25:02,740 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:25:02,740 INFO L443 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-10-22 11:25:02,740 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:25:02,740 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-10-22 11:25:02,740 INFO L443 ceAbstractionStarter]: For program point L16(lines 16 48) no Hoare annotation was computed. [2019-10-22 11:25:02,740 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 75) no Hoare annotation was computed. [2019-10-22 11:25:02,741 INFO L439 ceAbstractionStarter]: At program point L45(lines 8 76) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~main__y~0 0) (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 3 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse0 (- 4294967296))) 3)) (* 4294967296 .cse0))))) (and (<= 1 ULTIMATE.start_main_~main__y~0) (<= (div ULTIMATE.start_main_~main__y~0 4294967296) 0))) [2019-10-22 11:25:02,741 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 46) no Hoare annotation was computed. [2019-10-22 11:25:02,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:02 BoogieIcfgContainer [2019-10-22 11:25:02,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:02,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:02,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:02,760 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:02,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:01" (3/4) ... [2019-10-22 11:25:02,767 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:25:02,781 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:25:02,781 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:25:02,843 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8efdb2dd-3174-4bd6-81bc-e96973e675b8/bin/utaipan/witness.graphml [2019-10-22 11:25:02,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:02,848 INFO L168 Benchmark]: Toolchain (without parser) took 1741.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 945.0 MB in the beginning and 1.0 GB in the end (delta: -101.5 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:02,853 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:02,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:02,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.75 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:02,855 INFO L168 Benchmark]: Boogie Preprocessor took 19.91 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:02,855 INFO L168 Benchmark]: RCFGBuilder took 234.69 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:02,856 INFO L168 Benchmark]: TraceAbstraction took 1030.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:02,856 INFO L168 Benchmark]: Witness Printer took 86.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:02,861 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 329.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.75 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.91 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 234.69 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1030.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 11.5 GB. * Witness Printer took 86.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 61]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: (main__y == 0 && main__x <= 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * (main__x / 4294967296)) || (1 <= main__y && main__y / 4294967296 <= 0) - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 10 SDslu, 26 SDs, 0 SdLazy, 22 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, 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, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 34 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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...