./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested5_true-unreach-call.c --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_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58c483ef37358c272383ba8c3b69f22948f7d8e5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:45:04,767 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:45:04,770 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:45:04,782 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:45:04,783 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:45:04,784 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:45:04,785 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:45:04,789 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:45:04,792 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:45:04,796 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:45:04,798 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:45:04,799 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:45:04,800 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:45:04,800 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:45:04,801 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:45:04,802 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:45:04,803 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:45:04,804 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:45:04,815 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:45:04,817 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:45:04,820 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:45:04,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:45:04,827 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:45:04,830 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:45:04,830 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:45:04,831 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:45:04,832 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:45:04,833 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:45:04,833 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:45:04,834 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:45:04,834 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:45:04,835 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:45:04,835 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:45:04,835 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:45:04,836 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:45:04,836 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:45:04,837 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 21:45:04,858 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:45:04,859 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:45:04,860 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:45:04,860 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:45:04,861 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:45:04,863 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:45:04,863 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:45:04,863 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:45:04,863 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:45:04,863 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:45:04,864 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:45:04,864 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:45:04,864 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:45:04,864 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:45:04,864 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:45:04,864 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:45:04,865 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:45:04,865 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:45:04,865 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:45:04,865 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:45:04,865 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:45:04,866 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:45:04,868 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:45:04,868 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:45:04,869 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:45:04,869 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:45:04,869 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:45:04,870 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:45:04,870 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:45:04,870 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer 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 -> Automizer 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 -> 58c483ef37358c272383ba8c3b69f22948f7d8e5 [2018-10-26 21:45:04,905 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:45:04,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:45:04,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:45:04,926 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:45:04,927 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:45:04,927 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/../../sv-benchmarks/c/loops-crafted-1/nested5_true-unreach-call.c [2018-10-26 21:45:04,979 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/data/561d33e75/dc22a3e4007f4a48810b3434dcc8d716/FLAG044fb2ff5 [2018-10-26 21:45:05,375 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:45:05,375 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/sv-benchmarks/c/loops-crafted-1/nested5_true-unreach-call.c [2018-10-26 21:45:05,382 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/data/561d33e75/dc22a3e4007f4a48810b3434dcc8d716/FLAG044fb2ff5 [2018-10-26 21:45:05,397 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/data/561d33e75/dc22a3e4007f4a48810b3434dcc8d716 [2018-10-26 21:45:05,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:45:05,403 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:45:05,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:45:05,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:45:05,407 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:45:05,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:45:05" (1/1) ... [2018-10-26 21:45:05,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3662f0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05, skipping insertion in model container [2018-10-26 21:45:05,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:45:05" (1/1) ... [2018-10-26 21:45:05,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:45:05,440 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:45:05,580 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:45:05,583 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:45:05,598 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:45:05,612 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:45:05,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05 WrapperNode [2018-10-26 21:45:05,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:45:05,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:45:05,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:45:05,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:45:05,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05" (1/1) ... [2018-10-26 21:45:05,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05" (1/1) ... [2018-10-26 21:45:05,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05" (1/1) ... [2018-10-26 21:45:05,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05" (1/1) ... [2018-10-26 21:45:05,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05" (1/1) ... [2018-10-26 21:45:05,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05" (1/1) ... [2018-10-26 21:45:05,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05" (1/1) ... [2018-10-26 21:45:05,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:45:05,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:45:05,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:45:05,645 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:45:05,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/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 21:45:05,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:45:05,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:45:05,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 21:45:05,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:45:05,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 21:45:05,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 21:45:05,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:45:05,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:45:05,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:45:06,323 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:45:06,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:45:06 BoogieIcfgContainer [2018-10-26 21:45:06,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:45:06,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:45:06,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:45:06,328 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:45:06,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:45:05" (1/3) ... [2018-10-26 21:45:06,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e4683a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:45:06, skipping insertion in model container [2018-10-26 21:45:06,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:45:05" (2/3) ... [2018-10-26 21:45:06,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e4683a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:45:06, skipping insertion in model container [2018-10-26 21:45:06,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:45:06" (3/3) ... [2018-10-26 21:45:06,332 INFO L112 eAbstractionObserver]: Analyzing ICFG nested5_true-unreach-call.c [2018-10-26 21:45:06,342 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:45:06,349 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:45:06,364 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:45:06,401 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:45:06,401 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:45:06,402 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:45:06,402 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:45:06,402 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:45:06,402 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:45:06,402 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:45:06,402 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:45:06,402 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:45:06,420 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-10-26 21:45:06,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 21:45:06,426 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:45:06,427 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:45:06,429 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:45:06,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:45:06,435 INFO L82 PathProgramCache]: Analyzing trace with hash -909603619, now seen corresponding path program 1 times [2018-10-26 21:45:06,437 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:45:06,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:45:06,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:06,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:45:06,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:45:06,557 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 21:45:06,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:45:06,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 21:45:06,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 21:45:06,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 21:45:06,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 21:45:06,583 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-10-26 21:45:06,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:45:06,608 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2018-10-26 21:45:06,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 21:45:06,609 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 21:45:06,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:45:06,619 INFO L225 Difference]: With dead ends: 57 [2018-10-26 21:45:06,619 INFO L226 Difference]: Without dead ends: 27 [2018-10-26 21:45:06,623 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 21:45:06,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-26 21:45:06,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-10-26 21:45:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-26 21:45:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2018-10-26 21:45:06,663 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 18 [2018-10-26 21:45:06,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:45:06,663 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2018-10-26 21:45:06,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 21:45:06,664 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-10-26 21:45:06,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 21:45:06,664 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:45:06,665 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:45:06,665 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:45:06,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:45:06,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1571052641, now seen corresponding path program 1 times [2018-10-26 21:45:06,667 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:45:06,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:45:06,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:06,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:45:06,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:45:06,802 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 21:45:06,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:45:06,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:45:06,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:45:06,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:45:06,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:45:06,805 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 3 states. [2018-10-26 21:45:06,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:45:06,872 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-10-26 21:45:06,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:45:06,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-10-26 21:45:06,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:45:06,879 INFO L225 Difference]: With dead ends: 63 [2018-10-26 21:45:06,879 INFO L226 Difference]: Without dead ends: 41 [2018-10-26 21:45:06,880 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:45:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-26 21:45:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2018-10-26 21:45:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-26 21:45:06,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-10-26 21:45:06,887 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 19 [2018-10-26 21:45:06,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:45:06,887 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-10-26 21:45:06,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:45:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-10-26 21:45:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 21:45:06,888 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:45:06,888 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:45:06,888 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:45:06,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:45:06,889 INFO L82 PathProgramCache]: Analyzing trace with hash -90353287, now seen corresponding path program 1 times [2018-10-26 21:45:06,889 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:45:06,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:45:06,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:06,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:45:06,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:45:07,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:45:07,007 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:45:07,007 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:45:07,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:45:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:45:07,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:45:07,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:45:07,114 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:45:07,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-26 21:45:07,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:45:07,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:45:07,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:45:07,115 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 4 states. [2018-10-26 21:45:07,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:45:07,156 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2018-10-26 21:45:07,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:45:07,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-10-26 21:45:07,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:45:07,158 INFO L225 Difference]: With dead ends: 68 [2018-10-26 21:45:07,158 INFO L226 Difference]: Without dead ends: 44 [2018-10-26 21:45:07,159 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:45:07,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-26 21:45:07,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32. [2018-10-26 21:45:07,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-26 21:45:07,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-10-26 21:45:07,163 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 22 [2018-10-26 21:45:07,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:45:07,164 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-10-26 21:45:07,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:45:07,164 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-10-26 21:45:07,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 21:45:07,164 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:45:07,165 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:45:07,165 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:45:07,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:45:07,165 INFO L82 PathProgramCache]: Analyzing trace with hash 168764769, now seen corresponding path program 2 times [2018-10-26 21:45:07,165 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:45:07,165 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:45:07,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:07,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:45:07,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:45:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:45:07,333 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:45:07,333 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:45:07,348 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-26 21:45:07,380 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 21:45:07,380 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 21:45:07,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:45:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:45:07,474 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:45:07,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-10-26 21:45:07,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:45:07,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:45:07,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:45:07,475 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 5 states. [2018-10-26 21:45:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:45:07,600 INFO L93 Difference]: Finished difference Result 74 states and 86 transitions. [2018-10-26 21:45:07,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:45:07,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-10-26 21:45:07,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:45:07,602 INFO L225 Difference]: With dead ends: 74 [2018-10-26 21:45:07,602 INFO L226 Difference]: Without dead ends: 47 [2018-10-26 21:45:07,603 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:45:07,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-10-26 21:45:07,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2018-10-26 21:45:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-26 21:45:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2018-10-26 21:45:07,608 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 25 [2018-10-26 21:45:07,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:45:07,608 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-10-26 21:45:07,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:45:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-10-26 21:45:07,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-26 21:45:07,609 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:45:07,609 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, 1] [2018-10-26 21:45:07,610 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:45:07,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:45:07,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1498540153, now seen corresponding path program 3 times [2018-10-26 21:45:07,610 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:45:07,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:45:07,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:07,611 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 21:45:07,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:45:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:45:07,731 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:45:07,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:45:07,732 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:45:07,748 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-26 21:45:07,766 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-10-26 21:45:07,766 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 21:45:07,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:45:09,914 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_main_~v~0_BEFORE_CALL_1 Int)) (let ((.cse0 (mod v_main_~v~0_BEFORE_CALL_1 4))) (and (= 0 .cse0) (< (mod (+ v_main_~v~0_BEFORE_CALL_1 4294967295) 4294967296) 10) (= |c___VERIFIER_assert_#in~cond| .cse0) (<= .cse0 2147483647) (<= 10 (mod v_main_~v~0_BEFORE_CALL_1 4294967296))))) (exists ((v_prenex_5 Int)) (let ((.cse1 (mod v_prenex_5 4))) (and (= 0 .cse1) (< 2147483647 .cse1) (<= 10 (mod v_prenex_5 4294967296)) (< (mod (+ v_prenex_5 4294967295) 4294967296) 10) (= .cse1 (+ |c___VERIFIER_assert_#in~cond| 4294967296))))) (exists ((v_prenex_3 Int)) (let ((.cse2 (mod v_prenex_3 4)) (.cse3 (mod v_prenex_3 4294967296))) (and (< (mod (+ v_prenex_3 4294967295) 4294967296) 10) (= .cse2 (+ |c___VERIFIER_assert_#in~cond| 4294967296)) (< 2147483647 .cse2) (<= 0 .cse3) (<= 10 .cse3)))) (exists ((v_prenex_4 Int)) (let ((.cse4 (mod v_prenex_4 4)) (.cse5 (mod v_prenex_4 4294967296))) (and (<= .cse4 2147483647) (<= 10 .cse5) (= |c___VERIFIER_assert_#in~cond| .cse4) (<= 0 .cse5) (< (mod (+ v_prenex_4 4294967295) 4294967296) 10)))) (exists ((v_prenex_1 Int)) (let ((.cse8 (mod v_prenex_1 4))) (let ((.cse6 (mod v_prenex_1 4294967296)) (.cse7 (mod (+ .cse8 4294967292) 4294967296))) (and (<= 10 .cse6) (< (mod (+ v_prenex_1 4294967295) 4294967296) 10) (<= .cse7 2147483647) (< .cse6 0) (not (= 0 .cse8)) (= .cse7 |c___VERIFIER_assert_#in~cond|))))) (exists ((v_prenex_2 Int)) (let ((.cse11 (mod v_prenex_2 4))) (let ((.cse9 (mod v_prenex_2 4294967296)) (.cse10 (mod (+ .cse11 4294967292) 4294967296))) (and (< .cse9 0) (<= 10 .cse9) (< 2147483647 .cse10) (not (= 0 .cse11)) (= (+ |c___VERIFIER_assert_#in~cond| 4294967296) .cse10) (< (mod (+ v_prenex_2 4294967295) 4294967296) 10)))))) is different from true [2018-10-26 21:45:11,968 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 Int)) (let ((.cse2 (mod v_prenex_2 4))) (let ((.cse0 (mod v_prenex_2 4294967296)) (.cse1 (mod (+ .cse2 4294967292) 4294967296))) (and (< .cse0 0) (<= 10 .cse0) (< 2147483647 .cse1) (not (= 0 .cse2)) (< (mod (+ v_prenex_2 4294967295) 4294967296) 10) (= (+ c___VERIFIER_assert_~cond 4294967296) .cse1))))) (exists ((v_prenex_4 Int)) (let ((.cse4 (mod v_prenex_4 4294967296)) (.cse3 (mod v_prenex_4 4))) (and (<= .cse3 2147483647) (<= 10 .cse4) (<= 0 .cse4) (= c___VERIFIER_assert_~cond .cse3) (< (mod (+ v_prenex_4 4294967295) 4294967296) 10)))) (exists ((v_prenex_1 Int)) (let ((.cse7 (mod v_prenex_1 4))) (let ((.cse5 (mod v_prenex_1 4294967296)) (.cse6 (mod (+ .cse7 4294967292) 4294967296))) (and (<= 10 .cse5) (< (mod (+ v_prenex_1 4294967295) 4294967296) 10) (<= .cse6 2147483647) (< .cse5 0) (not (= 0 .cse7)) (= c___VERIFIER_assert_~cond .cse6))))) (exists ((v_prenex_5 Int)) (let ((.cse8 (mod v_prenex_5 4))) (and (= 0 .cse8) (< 2147483647 .cse8) (= (+ c___VERIFIER_assert_~cond 4294967296) .cse8) (<= 10 (mod v_prenex_5 4294967296)) (< (mod (+ v_prenex_5 4294967295) 4294967296) 10)))) (exists ((v_prenex_3 Int)) (let ((.cse9 (mod v_prenex_3 4)) (.cse10 (mod v_prenex_3 4294967296))) (and (< (mod (+ v_prenex_3 4294967295) 4294967296) 10) (< 2147483647 .cse9) (<= 0 .cse10) (= (+ c___VERIFIER_assert_~cond 4294967296) .cse9) (<= 10 .cse10)))) (exists ((v_main_~v~0_BEFORE_CALL_1 Int)) (let ((.cse11 (mod v_main_~v~0_BEFORE_CALL_1 4))) (and (= 0 .cse11) (< (mod (+ v_main_~v~0_BEFORE_CALL_1 4294967295) 4294967296) 10) (= .cse11 c___VERIFIER_assert_~cond) (<= .cse11 2147483647) (<= 10 (mod v_main_~v~0_BEFORE_CALL_1 4294967296)))))) is different from true [2018-10-26 21:45:14,406 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-26 21:45:14,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:45:14,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-26 21:45:14,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-26 21:45:14,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-26 21:45:14,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=51, Unknown=2, NotChecked=30, Total=110 [2018-10-26 21:45:14,437 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 11 states. [2018-10-26 21:45:14,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:45:14,607 INFO L93 Difference]: Finished difference Result 80 states and 94 transitions. [2018-10-26 21:45:14,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 21:45:14,609 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2018-10-26 21:45:14,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:45:14,609 INFO L225 Difference]: With dead ends: 80 [2018-10-26 21:45:14,609 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:45:14,610 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=34, Invalid=62, Unknown=2, NotChecked=34, Total=132 [2018-10-26 21:45:14,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:45:14,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:45:14,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:45:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:45:14,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-10-26 21:45:14,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:45:14,611 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:45:14,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-26 21:45:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:45:14,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:45:14,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:45:15,133 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 12 [2018-10-26 21:45:15,135 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 21:45:15,135 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:45:15,135 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:45:15,135 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 21:45:15,135 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:45:15,135 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:45:15,135 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2018-10-26 21:45:15,135 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 22) no Hoare annotation was computed. [2018-10-26 21:45:15,135 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 22) the Hoare annotation is: (or (and (<= main_~v~0 0) (<= 0 main_~v~0)) (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))) [2018-10-26 21:45:15,135 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-10-26 21:45:15,135 INFO L425 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-10-26 21:45:15,136 INFO L421 ceAbstractionStarter]: At program point L20-4(line 20) the Hoare annotation is: (or (and (<= main_~v~0 0) (<= 0 main_~v~0)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2018-10-26 21:45:15,136 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 22) no Hoare annotation was computed. [2018-10-26 21:45:15,136 INFO L421 ceAbstractionStarter]: At program point L20-5(line 20) the Hoare annotation is: (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2018-10-26 21:45:15,136 INFO L425 ceAbstractionStarter]: For program point L16-3(lines 16 22) no Hoare annotation was computed. [2018-10-26 21:45:15,136 INFO L421 ceAbstractionStarter]: At program point L16-4(lines 16 22) the Hoare annotation is: (or (and (<= main_~v~0 0) (<= 0 main_~v~0)) (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))) [2018-10-26 21:45:15,136 INFO L425 ceAbstractionStarter]: For program point L16-5(lines 10 23) no Hoare annotation was computed. [2018-10-26 21:45:15,136 INFO L425 ceAbstractionStarter]: For program point L21(lines 19 22) no Hoare annotation was computed. [2018-10-26 21:45:15,136 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-10-26 21:45:15,136 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 22) no Hoare annotation was computed. [2018-10-26 21:45:15,137 INFO L421 ceAbstractionStarter]: At program point L17-4(lines 17 22) the Hoare annotation is: (or (and (<= main_~v~0 0) (<= 0 main_~v~0)) (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))) [2018-10-26 21:45:15,137 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2018-10-26 21:45:15,137 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2018-10-26 21:45:15,137 INFO L425 ceAbstractionStarter]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2018-10-26 21:45:15,137 INFO L421 ceAbstractionStarter]: At program point L18-4(lines 18 22) the Hoare annotation is: (or (and (<= main_~v~0 0) (<= 0 main_~v~0)) (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))) [2018-10-26 21:45:15,137 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-26 21:45:15,141 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 21:45:15,141 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-26 21:45:15,142 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 21:45:15,142 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 21:45:15,142 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-26 21:45:15,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:45:15 BoogieIcfgContainer [2018-10-26 21:45:15,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:45:15,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:45:15,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:45:15,156 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:45:15,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:45:06" (3/4) ... [2018-10-26 21:45:15,161 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:45:15,167 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:45:15,168 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:45:15,168 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 21:45:15,173 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-10-26 21:45:15,173 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 21:45:15,173 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 21:45:15,213 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8ea004cf-8aa0-4e56-8c05-28a051b461c1/bin-2019/uautomizer/witness.graphml [2018-10-26 21:45:15,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:45:15,214 INFO L168 Benchmark]: Toolchain (without parser) took 9811.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 957.1 MB in the beginning and 974.3 MB in the end (delta: -17.2 MB). Peak memory consumption was 103.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:45:15,215 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:45:15,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.50 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:45:15,216 INFO L168 Benchmark]: Boogie Preprocessor took 31.28 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:45:15,217 INFO L168 Benchmark]: RCFGBuilder took 678.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-10-26 21:45:15,219 INFO L168 Benchmark]: TraceAbstraction took 8830.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.3 MB in the end (delta: 121.9 MB). Peak memory consumption was 121.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:45:15,219 INFO L168 Benchmark]: Witness Printer took 58.05 ms. Allocated memory is still 1.1 GB. Free memory is still 974.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:45:15,222 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.50 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.28 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 678.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -149.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8830.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.3 MB in the end (delta: 121.9 MB). Peak memory consumption was 121.9 MB. Max. memory is 11.5 GB. * Witness Printer took 58.05 ms. Allocated memory is still 1.1 GB. Free memory is still 974.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (v <= 0 && 0 <= v) || (10 <= v % 4294967296 && (v + 4294967295) % 4294967296 < 10) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (v <= 0 && 0 <= v) || (10 <= v % 4294967296 && (v + 4294967295) % 4294967296 < 10) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (v <= 0 && 0 <= v) || (10 <= v % 4294967296 && (v + 4294967295) % 4294967296 < 10) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (v <= 0 && 0 <= v) || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (v <= 0 && 0 <= v) || (10 <= v % 4294967296 && (v + 4294967295) % 4294967296 < 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. SAFE Result, 8.7s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 166 SDtfs, 95 SDslu, 260 SDs, 0 SdLazy, 95 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 75 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 16 PreInvPairs, 31 NumberOfFragments, 117 HoareAnnotationTreeSize, 16 FomulaSimplifications, 13 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 466 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 187 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 179 ConstructedInterpolants, 2 QuantifiedInterpolants, 21655 SizeOfPredicates, 4 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 15/48 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...