./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.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_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI --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 9d07eaa54010553b30999bd4904fe59a5fb610a7 ....................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:31:12,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:12,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:12,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:12,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:12,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:12,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:12,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:12,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:12,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:12,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:12,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:12,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:12,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:12,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:12,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:12,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:12,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:12,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:12,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:12,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:12,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:12,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:12,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:12,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:12,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:12,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:12,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:12,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:12,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:12,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:12,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:12,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:12,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:12,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:12,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:12,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:12,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:12,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:12,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:12,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:12,273 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:12,313 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:12,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:12,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:12,315 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:12,315 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:12,315 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:12,316 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:12,316 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:12,322 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:12,323 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:12,330 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:12,331 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:12,331 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:12,331 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:12,332 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:12,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:12,333 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:12,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:12,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:12,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:12,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:12,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:12,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:12,334 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:12,335 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:12,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:12,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:12,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:12,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:12,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:12,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:12,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:12,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:12,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:12,339 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:12,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:12,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:12,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:12,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:12,340 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_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d07eaa54010553b30999bd4904fe59a5fb610a7 [2021-10-11 02:31:12,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:12,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:12,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:12,665 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:12,666 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:12,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c [2021-10-11 02:31:12,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/data/7af7a4bed/4effa75caac34c0b81ba52f808d29c17/FLAG20e903593 [2021-10-11 02:31:13,160 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:13,161 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c [2021-10-11 02:31:13,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/data/7af7a4bed/4effa75caac34c0b81ba52f808d29c17/FLAG20e903593 [2021-10-11 02:31:13,565 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/data/7af7a4bed/4effa75caac34c0b81ba52f808d29c17 [2021-10-11 02:31:13,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:13,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:13,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:13,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:13,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:13,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6501e0e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13, skipping insertion in model container [2021-10-11 02:31:13,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:13,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:13,759 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c[525,538] [2021-10-11 02:31:13,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:13,787 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:13,798 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound10.c[525,538] [2021-10-11 02:31:13,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:13,817 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:13,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13 WrapperNode [2021-10-11 02:31:13,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:13,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:13,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:13,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:13,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:13,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:13,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:13,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:13,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:13,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:13,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:13,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:13,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:31:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:31:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:14,212 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:14,213 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 02:31:14,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:14 BoogieIcfgContainer [2021-10-11 02:31:14,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:14,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:14,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:14,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:14,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:13" (1/3) ... [2021-10-11 02:31:14,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6878ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:14, skipping insertion in model container [2021-10-11 02:31:14,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13" (2/3) ... [2021-10-11 02:31:14,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6878ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:14, skipping insertion in model container [2021-10-11 02:31:14,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:14" (3/3) ... [2021-10-11 02:31:14,225 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound10.c [2021-10-11 02:31:14,240 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:14,245 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:31:14,274 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:31:14,298 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:14,299 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:14,299 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:14,299 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:14,299 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:14,299 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:14,299 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:14,300 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:14,313 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-10-11 02:31:14,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:31:14,318 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:14,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:31:14,319 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:14,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:14,327 INFO L82 PathProgramCache]: Analyzing trace with hash 71331668, now seen corresponding path program 1 times [2021-10-11 02:31:14,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:14,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359660931] [2021-10-11 02:31:14,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:14,421 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:31:14,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783306349] [2021-10-11 02:31:14,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:31:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:14,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-11 02:31:14,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:14,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:14,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:14,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359660931] [2021-10-11 02:31:14,673 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:31:14,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783306349] [2021-10-11 02:31:14,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:14,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:31:14,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531797694] [2021-10-11 02:31:14,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:31:14,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:14,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:31:14,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:31:14,696 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 6 states. [2021-10-11 02:31:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:14,848 INFO L93 Difference]: Finished difference Result 30 states and 42 transitions. [2021-10-11 02:31:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:31:14,851 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2021-10-11 02:31:14,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:14,858 INFO L225 Difference]: With dead ends: 30 [2021-10-11 02:31:14,858 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:31:14,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:31:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:31:14,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:31:14,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:31:14,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:31:14,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-11 02:31:14,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:14,890 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:31:14,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:31:14,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:31:14,891 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:31:15,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:31:15,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:31:15,191 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:31:15,191 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:31:15,192 INFO L262 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:31:15,192 INFO L258 CegarLoopResult]: At program point L15-2(lines 37 38) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) [2021-10-11 02:31:15,192 INFO L262 CegarLoopResult]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:31:15,193 INFO L258 CegarLoopResult]: At program point L15-5(lines 14 20) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) [2021-10-11 02:31:15,193 INFO L262 CegarLoopResult]: For program point L34-1(lines 34 43) no Hoare annotation was computed. [2021-10-11 02:31:15,193 INFO L258 CegarLoopResult]: At program point L34-3(lines 34 43) the Hoare annotation is: (or (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)))) [2021-10-11 02:31:15,193 INFO L262 CegarLoopResult]: For program point L34-4(lines 34 43) no Hoare annotation was computed. [2021-10-11 02:31:15,194 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:31:15,194 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:31:15,194 INFO L262 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:31:15,194 INFO L262 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:31:15,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:15 BoogieIcfgContainer [2021-10-11 02:31:15,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:15,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:15,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:15,213 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:15,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:14" (3/4) ... [2021-10-11 02:31:15,218 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:31:15,228 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:31:15,229 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:31:15,229 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:31:15,229 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:31:15,274 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4a79442-7109-4ef2-87eb-72a435b7bc76/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:31:15,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:15,276 INFO L168 Benchmark]: Toolchain (without parser) took 1705.87 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 55.2 MB in the beginning and 68.9 MB in the end (delta: -13.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:15,276 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 71.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:15,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.93 ms. Allocated memory is still 96.5 MB. Free memory was 55.0 MB in the beginning and 72.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:15,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.17 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 71.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:15,278 INFO L168 Benchmark]: Boogie Preprocessor took 23.53 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 70.2 MB in the end (delta: 909.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:15,279 INFO L168 Benchmark]: RCFGBuilder took 340.44 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 54.8 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:15,280 INFO L168 Benchmark]: TraceAbstraction took 995.14 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.4 MB in the beginning and 71.7 MB in the end (delta: -17.3 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:15,280 INFO L168 Benchmark]: Witness Printer took 61.17 ms. Allocated memory is still 117.4 MB. Free memory was 71.7 MB in the beginning and 68.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:15,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 71.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 243.93 ms. Allocated memory is still 96.5 MB. Free memory was 55.0 MB in the beginning and 72.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.17 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 71.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.53 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 70.2 MB in the end (delta: 909.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 340.44 ms. Allocated memory is still 96.5 MB. Free memory was 70.2 MB in the beginning and 54.8 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 995.14 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.4 MB in the beginning and 71.7 MB in the end (delta: -17.3 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Witness Printer took 61.17 ms. Allocated memory is still 117.4 MB. Free memory was 71.7 MB in the beginning and 68.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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 2 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (1 == cond && z * x + a == az * y + x) || ((a == x && y == 1) && az == a * z) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 == cond && z * x + a == az * y + x - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 == cond && z * x + a == az * y + x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 32 SDslu, 6 SDs, 0 SdLazy, 14 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 58 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 SizeOfPredicates, 6 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 12 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...