./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.i --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_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.i -s /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/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 5a78e5ac8a70d10b48fa6c5955c8640de4def14b ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:38:00,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:38:00,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:38:00,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:38:00,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:38:00,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:38:00,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:38:00,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:38:00,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:38:00,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:38:00,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:38:00,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:38:00,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:38:00,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:38:00,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:38:00,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:38:00,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:38:00,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:38:00,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:38:00,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:38:00,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:38:00,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:38:00,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:38:00,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:38:00,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:38:00,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:38:00,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:38:00,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:38:00,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:38:00,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:38:00,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:38:00,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:38:00,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:38:00,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:38:00,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:38:00,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:38:00,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:38:00,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:38:00,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:38:00,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:38:00,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:38:00,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:38:00,167 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:38:00,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:38:00,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:38:00,177 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:38:00,178 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:38:00,178 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:38:00,178 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:38:00,178 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:38:00,178 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:38:00,179 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:38:00,179 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:38:00,179 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:38:00,179 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:38:00,180 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:38:00,180 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:38:00,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:38:00,181 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:38:00,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:38:00,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:38:00,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:38:00,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:38:00,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:38:00,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:38:00,183 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:38:00,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:38:00,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:38:00,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:38:00,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:38:00,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:38:00,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:38:00,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:38:00,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:38:00,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:38:00,185 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:38:00,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:38:00,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:38:00,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:38:00,186 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_658ac650-45fa-412b-840d-83b7cbb0750d/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 -> 5a78e5ac8a70d10b48fa6c5955c8640de4def14b [2019-11-26 02:38:00,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:38:00,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:38:00,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:38:00,370 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:38:00,370 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:38:00,371 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/../../sv-benchmarks/c/ldv-regression/test_while_int.i [2019-11-26 02:38:00,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/data/2c5b728f7/17c7df21fc424b439f978cd16cc8b64a/FLAGf028ace80 [2019-11-26 02:38:00,800 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:38:00,801 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/sv-benchmarks/c/ldv-regression/test_while_int.i [2019-11-26 02:38:00,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/data/2c5b728f7/17c7df21fc424b439f978cd16cc8b64a/FLAGf028ace80 [2019-11-26 02:38:01,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/data/2c5b728f7/17c7df21fc424b439f978cd16cc8b64a [2019-11-26 02:38:01,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:38:01,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:38:01,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:01,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:38:01,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:38:01,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b6ad06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01, skipping insertion in model container [2019-11-26 02:38:01,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:38:01,221 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:38:01,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:01,411 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:38:01,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:38:01,502 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:38:01,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01 WrapperNode [2019-11-26 02:38:01,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:38:01,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:01,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:38:01,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:38:01,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:38:01,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:38:01,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:38:01,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:38:01,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... [2019-11-26 02:38:01,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:38:01,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:38:01,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:38:01,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:38:01,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/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 02:38:01,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:38:01,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:38:01,742 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:38:01,742 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-26 02:38:01,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:01 BoogieIcfgContainer [2019-11-26 02:38:01,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:38:01,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:38:01,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:38:01,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:38:01,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:38:01" (1/3) ... [2019-11-26 02:38:01,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1939c6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:01, skipping insertion in model container [2019-11-26 02:38:01,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:38:01" (2/3) ... [2019-11-26 02:38:01,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1939c6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:38:01, skipping insertion in model container [2019-11-26 02:38:01,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:01" (3/3) ... [2019-11-26 02:38:01,750 INFO L109 eAbstractionObserver]: Analyzing ICFG test_while_int.i [2019-11-26 02:38:01,759 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:38:01,765 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:38:01,775 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:38:01,796 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:38:01,796 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:38:01,796 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:38:01,796 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:38:01,797 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:38:01,797 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:38:01,797 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:38:01,797 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:38:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-26 02:38:01,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:38:01,814 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:01,815 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:38:01,815 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:01,821 INFO L82 PathProgramCache]: Analyzing trace with hash 963404, now seen corresponding path program 1 times [2019-11-26 02:38:01,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:01,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464995567] [2019-11-26 02:38:01,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:38:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:01,947 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 02:38:01,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464995567] [2019-11-26 02:38:01,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:38:01,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:38:01,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865158510] [2019-11-26 02:38:01,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:38:01,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:38:01,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:38:01,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:38:01,968 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-11-26 02:38:02,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:02,007 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2019-11-26 02:38:02,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:38:02,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-26 02:38:02,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:02,016 INFO L225 Difference]: With dead ends: 13 [2019-11-26 02:38:02,016 INFO L226 Difference]: Without dead ends: 7 [2019-11-26 02:38:02,019 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:38:02,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-26 02:38:02,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-26 02:38:02,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-26 02:38:02,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-26 02:38:02,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-11-26 02:38:02,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:02,049 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-26 02:38:02,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:38:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-26 02:38:02,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:38:02,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:02,050 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-11-26 02:38:02,050 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:02,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:02,051 INFO L82 PathProgramCache]: Analyzing trace with hash 925765417, now seen corresponding path program 1 times [2019-11-26 02:38:02,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:02,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003764551] [2019-11-26 02:38:02,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:38:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:02,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:02,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003764551] [2019-11-26 02:38:02,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166283797] [2019-11-26 02:38:02,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/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 02:38:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:38:02,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-26 02:38:02,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:38:02,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:38:02,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:02,182 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:38:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:38:02,208 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [60465398] [2019-11-26 02:38:02,229 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2019-11-26 02:38:02,229 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:38:02,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:38:02,240 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:38:02,241 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:38:02,356 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:38:02,469 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:38:02,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:38:02,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2019-11-26 02:38:02,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289648931] [2019-11-26 02:38:02,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:38:02,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:38:02,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:38:02,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:38:02,472 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-11-26 02:38:02,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:38:02,518 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-11-26 02:38:02,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:38:02,519 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-11-26 02:38:02,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:38:02,520 INFO L225 Difference]: With dead ends: 12 [2019-11-26 02:38:02,520 INFO L226 Difference]: Without dead ends: 10 [2019-11-26 02:38:02,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:38:02,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-26 02:38:02,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-11-26 02:38:02,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-26 02:38:02,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-26 02:38:02,524 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-11-26 02:38:02,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:38:02,524 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-26 02:38:02,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:38:02,524 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-26 02:38:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:38:02,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:38:02,525 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-11-26 02:38:02,726 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:38:02,726 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:38:02,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:38:02,726 INFO L82 PathProgramCache]: Analyzing trace with hash 602269638, now seen corresponding path program 2 times [2019-11-26 02:38:02,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:38:02,727 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605487141] [2019-11-26 02:38:02,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:38:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:38:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:38:02,772 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:38:02,773 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:38:02,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:38:02 BoogieIcfgContainer [2019-11-26 02:38:02,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:38:02,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:38:02,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:38:02,787 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:38:02,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:38:01" (3/4) ... [2019-11-26 02:38:02,790 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:38:02,828 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_658ac650-45fa-412b-840d-83b7cbb0750d/bin/utaipan/witness.graphml [2019-11-26 02:38:02,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:38:02,830 INFO L168 Benchmark]: Toolchain (without parser) took 1644.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 947.5 MB in the beginning and 1.1 GB in the end (delta: -148.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:02,831 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:38:02,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -229.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:02,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.00 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:02,833 INFO L168 Benchmark]: Boogie Preprocessor took 17.75 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:02,833 INFO L168 Benchmark]: RCFGBuilder took 193.94 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:02,834 INFO L168 Benchmark]: TraceAbstraction took 1042.04 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: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:02,835 INFO L168 Benchmark]: Witness Printer took 41.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:38:02,844 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 317.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -229.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.00 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.75 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 193.94 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1042.04 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: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L23] int i=0; [L24] COND TRUE i<5 [L25] i++ [L18] (b) ? (0) : __blast_assert () [L24] COND TRUE i<5 [L25] i++ [L18] (b) ? (0) : __blast_assert () [L24] COND TRUE i<5 [L25] i++ [L18] (b) ? (0) : __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 4 SDslu, 12 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 229 SizeOfPredicates, 3 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...