./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test05.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05c65c7d68b3a37a7b43ddbea39e95d8b1d121ee ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 14:07:38,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 14:07:38,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 14:07:38,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 14:07:38,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 14:07:38,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 14:07:38,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 14:07:38,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 14:07:38,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 14:07:38,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 14:07:38,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 14:07:38,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 14:07:38,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 14:07:38,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 14:07:38,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 14:07:38,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 14:07:38,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 14:07:38,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 14:07:38,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 14:07:38,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 14:07:38,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 14:07:38,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 14:07:38,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 14:07:38,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 14:07:38,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 14:07:38,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 14:07:38,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 14:07:38,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 14:07:38,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 14:07:38,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 14:07:38,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 14:07:38,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 14:07:38,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 14:07:38,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 14:07:38,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 14:07:38,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 14:07:38,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 14:07:38,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 14:07:38,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 14:07:38,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 14:07:38,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 14:07:38,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 14:07:38,836 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 14:07:38,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 14:07:38,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 14:07:38,838 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 14:07:38,838 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 14:07:38,838 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 14:07:38,838 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 14:07:38,838 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 14:07:38,838 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 14:07:38,839 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 14:07:38,839 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 14:07:38,839 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 14:07:38,839 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 14:07:38,839 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 14:07:38,839 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 14:07:38,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 14:07:38,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 14:07:38,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 14:07:38,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 14:07:38,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 14:07:38,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 14:07:38,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 14:07:38,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 14:07:38,841 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 14:07:38,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 14:07:38,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 14:07:38,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 14:07:38,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 14:07:38,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 14:07:38,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 14:07:38,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 14:07:38,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 14:07:38,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 14:07:38,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 14:07:38,843 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 14:07:38,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 14:07:38,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 14:07:38,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 14:07:38,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 14:07:38,844 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05c65c7d68b3a37a7b43ddbea39e95d8b1d121ee [2020-12-09 14:07:39,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 14:07:39,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 14:07:39,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 14:07:39,039 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 14:07:39,039 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 14:07:39,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/../../sv-benchmarks/c/ldv-regression/test05.c [2020-12-09 14:07:39,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/data/b6d3aa443/4f6f76b29946488d858c27337f388c3f/FLAG79ed2cde7 [2020-12-09 14:07:39,464 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 14:07:39,465 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/sv-benchmarks/c/ldv-regression/test05.c [2020-12-09 14:07:39,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/data/b6d3aa443/4f6f76b29946488d858c27337f388c3f/FLAG79ed2cde7 [2020-12-09 14:07:39,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/data/b6d3aa443/4f6f76b29946488d858c27337f388c3f [2020-12-09 14:07:39,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 14:07:39,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 14:07:39,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 14:07:39,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 14:07:39,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 14:07:39,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f71c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39, skipping insertion in model container [2020-12-09 14:07:39,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 14:07:39,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 14:07:39,620 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/sv-benchmarks/c/ldv-regression/test05.c[710,723] [2020-12-09 14:07:39,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:07:39,629 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 14:07:39,640 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/sv-benchmarks/c/ldv-regression/test05.c[710,723] [2020-12-09 14:07:39,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 14:07:39,651 INFO L208 MainTranslator]: Completed translation [2020-12-09 14:07:39,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39 WrapperNode [2020-12-09 14:07:39,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 14:07:39,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 14:07:39,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 14:07:39,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 14:07:39,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 14:07:39,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 14:07:39,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 14:07:39,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 14:07:39,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... [2020-12-09 14:07:39,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 14:07:39,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 14:07:39,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 14:07:39,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 14:07:39,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/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 [2020-12-09 14:07:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-09 14:07:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 14:07:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-09 14:07:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 14:07:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 14:07:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 14:07:39,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 14:07:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 14:07:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 14:07:40,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 14:07:40,162 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-09 14:07:40,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:07:40 BoogieIcfgContainer [2020-12-09 14:07:40,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 14:07:40,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 14:07:40,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 14:07:40,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 14:07:40,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:07:39" (1/3) ... [2020-12-09 14:07:40,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1e3659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:07:40, skipping insertion in model container [2020-12-09 14:07:40,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:07:39" (2/3) ... [2020-12-09 14:07:40,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1e3659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:07:40, skipping insertion in model container [2020-12-09 14:07:40,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:07:40" (3/3) ... [2020-12-09 14:07:40,169 INFO L111 eAbstractionObserver]: Analyzing ICFG test05.c [2020-12-09 14:07:40,179 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 14:07:40,182 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 14:07:40,190 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 14:07:40,207 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 14:07:40,207 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 14:07:40,207 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 14:07:40,207 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 14:07:40,207 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 14:07:40,207 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 14:07:40,207 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 14:07:40,208 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 14:07:40,216 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-12-09 14:07:40,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 14:07:40,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:07:40,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 14:07:40,220 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:07:40,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:07:40,225 INFO L82 PathProgramCache]: Analyzing trace with hash 61961, now seen corresponding path program 1 times [2020-12-09 14:07:40,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:07:40,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380170043] [2020-12-09 14:07:40,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:07:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:07:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:07:40,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380170043] [2020-12-09 14:07:40,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:07:40,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 14:07:40,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34166688] [2020-12-09 14:07:40,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 14:07:40,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:07:40,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 14:07:40,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:07:40,460 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2020-12-09 14:07:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:07:40,472 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-12-09 14:07:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 14:07:40,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 14:07:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:07:40,482 INFO L225 Difference]: With dead ends: 11 [2020-12-09 14:07:40,482 INFO L226 Difference]: Without dead ends: 5 [2020-12-09 14:07:40,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 14:07:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2020-12-09 14:07:40,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-12-09 14:07:40,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-09 14:07:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2020-12-09 14:07:40,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2020-12-09 14:07:40,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:07:40,513 INFO L481 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2020-12-09 14:07:40,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 14:07:40,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2020-12-09 14:07:40,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 14:07:40,514 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 14:07:40,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 14:07:40,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 14:07:40,515 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 14:07:40,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 14:07:40,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1922612, now seen corresponding path program 1 times [2020-12-09 14:07:40,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 14:07:40,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894341699] [2020-12-09 14:07:40,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 14:07:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 14:07:40,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 14:07:40,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894341699] [2020-12-09 14:07:40,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 14:07:40,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 14:07:40,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281549395] [2020-12-09 14:07:40,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 14:07:40,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 14:07:40,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 14:07:40,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 14:07:40,652 INFO L87 Difference]: Start difference. First operand 5 states and 4 transitions. Second operand 4 states. [2020-12-09 14:07:40,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 14:07:40,710 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2020-12-09 14:07:40,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 14:07:40,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-09 14:07:40,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 14:07:40,710 INFO L225 Difference]: With dead ends: 5 [2020-12-09 14:07:40,710 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 14:07:40,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 14:07:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 14:07:40,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 14:07:40,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 14:07:40,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 14:07:40,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-09 14:07:40,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 14:07:40,712 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 14:07:40,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 14:07:40,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 14:07:40,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 14:07:40,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 14:07:40,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 14:07:40,721 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 14:07:40,721 INFO L262 CegarLoopResult]: For program point L40(lines 40 42) no Hoare annotation was computed. [2020-12-09 14:07:40,721 INFO L262 CegarLoopResult]: For program point L36(lines 36 38) no Hoare annotation was computed. [2020-12-09 14:07:40,722 INFO L265 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-12-09 14:07:40,722 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-09 14:07:40,722 INFO L265 CegarLoopResult]: At program point L47(lines 22 48) the Hoare annotation is: true [2020-12-09 14:07:40,722 INFO L258 CegarLoopResult]: At program point L41(lines 22 48) the Hoare annotation is: false [2020-12-09 14:07:40,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:07:40 BoogieIcfgContainer [2020-12-09 14:07:40,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 14:07:40,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 14:07:40,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 14:07:40,729 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 14:07:40,729 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:07:40" (3/4) ... [2020-12-09 14:07:40,731 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 14:07:40,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-09 14:07:40,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 14:07:40,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 14:07:40,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 14:07:40,769 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec35bfd5-1ca2-4774-8c18-ae2bff879953/bin/utaipan/witness.graphml [2020-12-09 14:07:40,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 14:07:40,770 INFO L168 Benchmark]: Toolchain (without parser) took 1286.08 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 55.9 MB in the beginning and 55.0 MB in the end (delta: 868.3 kB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:40,770 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 71.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 14:07:40,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.32 ms. Allocated memory is still 96.5 MB. Free memory was 55.8 MB in the beginning and 70.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:40,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 68.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:40,771 INFO L168 Benchmark]: Boogie Preprocessor took 15.52 ms. Allocated memory is still 96.5 MB. Free memory was 68.5 MB in the beginning and 67.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:40,772 INFO L168 Benchmark]: RCFGBuilder took 463.81 ms. Allocated memory is still 96.5 MB. Free memory was 67.3 MB in the beginning and 44.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:40,772 INFO L168 Benchmark]: TraceAbstraction took 564.00 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 44.2 MB in the beginning and 57.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:40,773 INFO L168 Benchmark]: Witness Printer took 40.22 ms. Allocated memory is still 119.5 MB. Free memory was 57.9 MB in the beginning and 55.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 14:07:40,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 71.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 167.32 ms. Allocated memory is still 96.5 MB. Free memory was 55.8 MB in the beginning and 70.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 68.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.52 ms. Allocated memory is still 96.5 MB. Free memory was 68.5 MB in the beginning and 67.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 463.81 ms. Allocated memory is still 96.5 MB. Free memory was 67.3 MB in the beginning and 44.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 564.00 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 44.2 MB in the beginning and 57.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. * Witness Printer took 40.22 ms. Allocated memory is still 119.5 MB. Free memory was 57.9 MB in the beginning and 55.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 0 SDslu, 4 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 4 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...