./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/id_trans_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_trans_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/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 6b853b7a72b17d5b4054a16a7ba98c728e55c23b ............................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-10-26 23:18:59,794 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:18:59,795 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:18:59,803 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:18:59,804 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:18:59,804 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:18:59,806 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:18:59,807 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:18:59,808 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:18:59,809 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:18:59,810 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:18:59,810 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:18:59,811 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:18:59,812 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:18:59,813 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:18:59,814 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:18:59,815 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:18:59,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:18:59,818 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:18:59,819 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:18:59,820 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:18:59,821 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:18:59,823 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:18:59,823 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:18:59,824 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:18:59,824 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:18:59,825 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:18:59,826 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:18:59,827 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:18:59,828 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:18:59,828 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:18:59,828 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:18:59,829 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:18:59,829 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:18:59,830 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:18:59,831 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:18:59,831 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 23:18:59,842 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:18:59,843 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:18:59,843 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:18:59,843 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:18:59,844 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:18:59,844 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:18:59,844 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:18:59,844 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:18:59,844 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:18:59,844 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:18:59,844 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:18:59,845 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:18:59,845 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:18:59,846 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:18:59,847 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:18:59,847 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:18:59,847 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:18:59,847 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:18:59,847 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:18:59,847 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:18:59,847 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:18:59,848 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:18:59,848 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:18:59,848 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:18:59,848 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:18:59,848 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:18:59,848 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:18:59,848 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:18:59,849 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:18:59,849 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:18:59,849 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:18:59,849 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:18:59,849 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:18:59,849 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:18:59,849 INFO L133 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_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/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 -> 6b853b7a72b17d5b4054a16a7ba98c728e55c23b [2018-10-26 23:18:59,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:18:59,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:18:59,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:18:59,892 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:18:59,893 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:18:59,893 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/../../sv-benchmarks/c/loop-invgen/id_trans_false-unreach-call_true-termination.i [2018-10-26 23:18:59,945 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/data/820c975a3/1ca822b6850c4063a8ff8ecea873b700/FLAG36a327161 [2018-10-26 23:19:00,321 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:19:00,321 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/sv-benchmarks/c/loop-invgen/id_trans_false-unreach-call_true-termination.i [2018-10-26 23:19:00,327 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/data/820c975a3/1ca822b6850c4063a8ff8ecea873b700/FLAG36a327161 [2018-10-26 23:19:00,338 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/data/820c975a3/1ca822b6850c4063a8ff8ecea873b700 [2018-10-26 23:19:00,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:19:00,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:19:00,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:19:00,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:19:00,346 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:19:00,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501b0c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00, skipping insertion in model container [2018-10-26 23:19:00,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:19:00,372 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:19:00,486 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:19:00,489 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:19:00,503 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:19:00,513 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:19:00,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00 WrapperNode [2018-10-26 23:19:00,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:19:00,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:19:00,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:19:00,514 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:19:00,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:19:00,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:19:00,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:19:00,533 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:19:00,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... [2018-10-26 23:19:00,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:19:00,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:19:00,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:19:00,556 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:19:00,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/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 [2018-10-26 23:19:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:19:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:19:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:19:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:19:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:19:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:19:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:19:00,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:19:01,009 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:19:01,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:19:01 BoogieIcfgContainer [2018-10-26 23:19:01,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:19:01,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:19:01,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:19:01,013 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:19:01,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:19:00" (1/3) ... [2018-10-26 23:19:01,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d44d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:19:01, skipping insertion in model container [2018-10-26 23:19:01,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:19:00" (2/3) ... [2018-10-26 23:19:01,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15d44d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:19:01, skipping insertion in model container [2018-10-26 23:19:01,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:19:01" (3/3) ... [2018-10-26 23:19:01,024 INFO L112 eAbstractionObserver]: Analyzing ICFG id_trans_false-unreach-call_true-termination.i [2018-10-26 23:19:01,035 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:19:01,041 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:19:01,055 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:19:01,082 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:19:01,082 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:19:01,082 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:19:01,083 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:19:01,083 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:19:01,083 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:19:01,083 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:19:01,083 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:19:01,104 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-26 23:19:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 23:19:01,116 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:19:01,117 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:19:01,119 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:19:01,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:19:01,126 INFO L82 PathProgramCache]: Analyzing trace with hash -243865802, now seen corresponding path program 1 times [2018-10-26 23:19:01,128 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:19:01,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:19:01,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:19:01,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:19:01,170 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:19:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:19:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:19:01,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:19:01,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 23:19:01,354 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:19:01,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 23:19:01,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 23:19:01,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:19:01,368 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-10-26 23:19:01,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:19:01,531 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2018-10-26 23:19:01,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 23:19:01,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-10-26 23:19:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:19:01,540 INFO L225 Difference]: With dead ends: 48 [2018-10-26 23:19:01,540 INFO L226 Difference]: Without dead ends: 23 [2018-10-26 23:19:01,543 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:19:01,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-26 23:19:01,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-10-26 23:19:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-26 23:19:01,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-10-26 23:19:01,578 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 12 [2018-10-26 23:19:01,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:19:01,579 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-10-26 23:19:01,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 23:19:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-10-26 23:19:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 23:19:01,581 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:19:01,581 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:19:01,581 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:19:01,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:19:01,582 INFO L82 PathProgramCache]: Analyzing trace with hash 662571400, now seen corresponding path program 1 times [2018-10-26 23:19:01,582 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:19:01,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:19:01,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:19:01,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:19:01,583 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:19:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:19:01,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:19:01,806 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:19:01,806 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:19:01,807 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-10-26 23:19:01,808 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [17], [29], [32], [34], [37], [39], [40], [41], [42], [44], [45], [46] [2018-10-26 23:19:01,846 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:19:01,847 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:19:01,961 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:19:02,016 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:19:02,017 INFO L272 AbstractInterpreter]: Visited 15 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-10-26 23:19:02,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:19:02,027 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:19:02,121 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 56.25% of their original sizes. [2018-10-26 23:19:02,121 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:19:02,422 INFO L415 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2018-10-26 23:19:02,422 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:19:02,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:19:02,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2018-10-26 23:19:02,423 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:19:02,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:19:02,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:19:02,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:19:02,425 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 7 states. [2018-10-26 23:19:03,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:19:03,066 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2018-10-26 23:19:03,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:19:03,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-10-26 23:19:03,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:19:03,067 INFO L225 Difference]: With dead ends: 40 [2018-10-26 23:19:03,067 INFO L226 Difference]: Without dead ends: 38 [2018-10-26 23:19:03,067 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-26 23:19:03,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-26 23:19:03,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-10-26 23:19:03,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-26 23:19:03,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-10-26 23:19:03,077 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 17 [2018-10-26 23:19:03,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:19:03,078 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-10-26 23:19:03,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:19:03,078 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-10-26 23:19:03,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 23:19:03,079 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:19:03,079 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:19:03,080 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:19:03,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:19:03,080 INFO L82 PathProgramCache]: Analyzing trace with hash -366649848, now seen corresponding path program 1 times [2018-10-26 23:19:03,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:19:03,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:19:03,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:19:03,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:19:03,081 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:19:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:19:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:19:03,141 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:19:03,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:19:03 BoogieIcfgContainer [2018-10-26 23:19:03,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:19:03,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:19:03,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:19:03,158 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:19:03,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:19:01" (3/4) ... [2018-10-26 23:19:03,160 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 23:19:03,201 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_49fc1de0-7612-408a-8255-f4598981713e/bin-2019/utaipan/witness.graphml [2018-10-26 23:19:03,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:19:03,202 INFO L168 Benchmark]: Toolchain (without parser) took 2861.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 958.1 MB in the beginning and 1.0 GB in the end (delta: -55.8 MB). Peak memory consumption was 83.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:19:03,203 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:19:03,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.65 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 946.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:19:03,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.35 ms. Allocated memory is still 1.0 GB. Free memory is still 946.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:19:03,204 INFO L168 Benchmark]: Boogie Preprocessor took 23.41 ms. Allocated memory is still 1.0 GB. Free memory was 946.1 MB in the beginning and 943.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:19:03,204 INFO L168 Benchmark]: RCFGBuilder took 453.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:19:03,205 INFO L168 Benchmark]: TraceAbstraction took 2146.61 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: 112.3 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:19:03,205 INFO L168 Benchmark]: Witness Printer took 43.70 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:19:03,207 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.65 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 946.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.35 ms. Allocated memory is still 1.0 GB. Free memory is still 946.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.41 ms. Allocated memory is still 1.0 GB. Free memory was 946.1 MB in the beginning and 943.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 453.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2146.61 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: 112.3 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. * Witness Printer took 43.70 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: 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: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int idBitLength, material_length, nlen; [L12] int j, k; [L13] nlen = __VERIFIER_nondet_int() [L14] idBitLength = __VERIFIER_nondet_int() [L15] material_length = __VERIFIER_nondet_int() [L16] COND FALSE !(!( nlen == idBitLength / 32 )) [L17] j = 0 VAL [idBitLength=8, j=0, material_length=1, nlen=0] [L17] COND TRUE (j < idBitLength / 8) && (j < material_length) VAL [idBitLength=8, j=0, material_length=1, nlen=0] [L18] CALL __VERIFIER_assert( 0 <= j) VAL [\old(cond)=1] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1] [L18] __VERIFIER_assert( 0 <= j) VAL [idBitLength=8, j=0, material_length=1, nlen=0] [L19] CALL __VERIFIER_assert( j < material_length ) VAL [\old(cond)=1] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1] [L19] __VERIFIER_assert( j < material_length ) VAL [idBitLength=8, j=0, material_length=1, nlen=0] [L20] CALL __VERIFIER_assert( 0 <= j/4 ) VAL [\old(cond)=1] [L4] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1] [L20] __VERIFIER_assert( 0 <= j/4 ) VAL [idBitLength=8, j=0, material_length=1, nlen=0] [L21] CALL __VERIFIER_assert( j/4 < nlen) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 20 SDslu, 125 SDs, 0 SdLazy, 31 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9140625 AbsIntWeakeningRatio, 0.625 AbsIntAvgWeakeningVarsNumRemoved, 6.5 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 903 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...