java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:27:42,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:27:42,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:27:42,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 05:27:42,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:27:42,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:27:42,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:27:42,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:27:42,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:27:42,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:27:42,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:27:42,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:27:42,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:27:42,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:27:42,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:27:42,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:27:42,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 05:27:42,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:27:42,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:27:42,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:27:42,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:27:42,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:27:42,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:27:42,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:27:42,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:27:42,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:27:42,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:27:42,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:27:42,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 05:27:42,853 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:27:42,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:27:42,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:27:42,854 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:27:42,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:27:42,855 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:27:42,855 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:27:42,857 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:27:42,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:27:42,857 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:27:42,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:27:42,858 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:27:42,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:27:42,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:27:42,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:27:42,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:27:42,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:27:42,860 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:27:42,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:27:42,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:27:42,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:27:42,861 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:27:42,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:27:42,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:27:42,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:27:42,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:27:42,862 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:27:42,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:27:42,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:27:42,862 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:27:42,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:27:42,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:27:42,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:27:42,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:27:42,913 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:27:42,914 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-09-09 05:27:42,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5b04195/567b396ad6eb4f0ea671a5814fa51b0a/FLAGf4dc019b2 [2019-09-09 05:27:43,403 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:27:43,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-09-09 05:27:43,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5b04195/567b396ad6eb4f0ea671a5814fa51b0a/FLAGf4dc019b2 [2019-09-09 05:27:43,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5b04195/567b396ad6eb4f0ea671a5814fa51b0a [2019-09-09 05:27:43,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:27:43,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:27:43,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:27:43,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:27:43,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:27:43,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:27:43" (1/1) ... [2019-09-09 05:27:43,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e5ebd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:43, skipping insertion in model container [2019-09-09 05:27:43,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:27:43" (1/1) ... [2019-09-09 05:27:43,845 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:27:43,868 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:27:44,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:27:44,139 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:27:44,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:27:44,305 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:27:44,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44 WrapperNode [2019-09-09 05:27:44,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:27:44,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:27:44,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:27:44,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:27:44,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44" (1/1) ... [2019-09-09 05:27:44,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44" (1/1) ... [2019-09-09 05:27:44,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44" (1/1) ... [2019-09-09 05:27:44,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44" (1/1) ... [2019-09-09 05:27:44,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44" (1/1) ... [2019-09-09 05:27:44,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44" (1/1) ... [2019-09-09 05:27:44,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44" (1/1) ... [2019-09-09 05:27:44,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:27:44,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:27:44,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:27:44,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:27:44,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:27:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:27:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:27:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:27:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:27:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:27:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:27:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 05:27:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:27:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-09 05:27:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-09 05:27:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-09 05:27:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-09 05:27:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:27:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:27:44,740 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:27:44,740 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-09 05:27:44,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:27:44 BoogieIcfgContainer [2019-09-09 05:27:44,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:27:44,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:27:44,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:27:44,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:27:44,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:27:43" (1/3) ... [2019-09-09 05:27:44,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326a4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:27:44, skipping insertion in model container [2019-09-09 05:27:44,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:27:44" (2/3) ... [2019-09-09 05:27:44,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326a4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:27:44, skipping insertion in model container [2019-09-09 05:27:44,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:27:44" (3/3) ... [2019-09-09 05:27:44,749 INFO L109 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_2_ground.i [2019-09-09 05:27:44,757 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:27:44,763 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:27:44,778 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:27:44,802 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:27:44,802 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:27:44,802 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:27:44,802 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:27:44,802 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:27:44,802 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:27:44,803 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:27:44,803 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:27:44,818 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-09-09 05:27:44,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-09 05:27:44,827 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:27:44,828 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:27:44,829 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:27:44,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:27:44,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1156372912, now seen corresponding path program 1 times [2019-09-09 05:27:44,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:27:44,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:27:44,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:27:44,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:27:44,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:27:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:27:44,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:27:44,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:27:44,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:27:44,969 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:27:44,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:27:44,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:27:44,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:27:44,991 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-09-09 05:27:45,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:27:45,011 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2019-09-09 05:27:45,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:27:45,012 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-09-09 05:27:45,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:27:45,022 INFO L225 Difference]: With dead ends: 45 [2019-09-09 05:27:45,022 INFO L226 Difference]: Without dead ends: 40 [2019-09-09 05:27:45,024 INFO L628 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 [2019-09-09 05:27:45,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-09-09 05:27:45,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-09-09 05:27:45,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-09 05:27:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-09-09 05:27:45,064 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 16 [2019-09-09 05:27:45,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:27:45,065 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-09-09 05:27:45,065 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:27:45,065 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-09-09 05:27:45,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-09 05:27:45,066 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:27:45,067 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:27:45,067 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:27:45,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:27:45,068 INFO L82 PathProgramCache]: Analyzing trace with hash -2078459264, now seen corresponding path program 1 times [2019-09-09 05:27:45,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:27:45,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:27:45,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:27:45,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:27:45,070 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:27:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:27:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:27:45,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:27:45,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 05:27:45,132 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:27:45,134 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:27:45,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:27:45,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:27:45,135 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 3 states. [2019-09-09 05:27:45,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:27:45,237 INFO L93 Difference]: Finished difference Result 60 states and 79 transitions. [2019-09-09 05:27:45,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:27:45,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-09-09 05:27:45,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:27:45,239 INFO L225 Difference]: With dead ends: 60 [2019-09-09 05:27:45,240 INFO L226 Difference]: Without dead ends: 60 [2019-09-09 05:27:45,241 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:27:45,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-09-09 05:27:45,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 42. [2019-09-09 05:27:45,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-09-09 05:27:45,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2019-09-09 05:27:45,262 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 16 [2019-09-09 05:27:45,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:27:45,264 INFO L475 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2019-09-09 05:27:45,264 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:27:45,264 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2019-09-09 05:27:45,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-09 05:27:45,265 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:27:45,265 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:27:45,266 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:27:45,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:27:45,267 INFO L82 PathProgramCache]: Analyzing trace with hash -898844059, now seen corresponding path program 1 times [2019-09-09 05:27:45,267 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:27:45,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:27:45,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:27:45,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:27:45,271 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:27:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:27:45,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:27:45,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:27:45,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-09 05:27:45,364 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:27:45,364 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-09 05:27:45,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-09 05:27:45,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:27:45,365 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 4 states. [2019-09-09 05:27:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:27:45,491 INFO L93 Difference]: Finished difference Result 63 states and 83 transitions. [2019-09-09 05:27:45,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 05:27:45,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-09-09 05:27:45,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:27:45,493 INFO L225 Difference]: With dead ends: 63 [2019-09-09 05:27:45,493 INFO L226 Difference]: Without dead ends: 63 [2019-09-09 05:27:45,494 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-09 05:27:45,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-09-09 05:27:45,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 43. [2019-09-09 05:27:45,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-09-09 05:27:45,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2019-09-09 05:27:45,500 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 20 [2019-09-09 05:27:45,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:27:45,501 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2019-09-09 05:27:45,501 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-09 05:27:45,501 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2019-09-09 05:27:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-09 05:27:45,502 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:27:45,502 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:27:45,502 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:27:45,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:27:45,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1561235658, now seen corresponding path program 1 times [2019-09-09 05:27:45,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:27:45,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:27:45,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:27:45,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:27:45,506 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:27:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:27:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:27:45,589 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:27:45,589 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 05:27:45,590 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2019-09-09 05:27:45,592 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [11], [13], [15], [19], [28], [35], [37], [40], [44], [50], [54], [62], [70], [132], [135], [137], [143], [144], [145], [147] [2019-09-09 05:27:45,628 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:27:45,628 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:27:45,680 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 05:27:45,682 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 28 variables. [2019-09-09 05:27:45,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:27:45,686 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 05:27:45,721 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-09 05:27:45,722 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 05:27:45,723 INFO L420 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-09-09 05:27:45,724 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 05:27:45,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-09 05:27:45,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2019-09-09 05:27:45,725 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:27:45,725 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:27:45,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:27:45,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:27:45,726 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 2 states. [2019-09-09 05:27:45,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:27:45,727 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-09 05:27:45,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:27:45,727 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-09-09 05:27:45,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:27:45,728 INFO L225 Difference]: With dead ends: 6 [2019-09-09 05:27:45,728 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:27:45,728 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:27:45,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:27:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:27:45,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:27:45,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:27:45,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-09-09 05:27:45,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:27:45,730 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:27:45,730 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:27:45,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:27:45,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:27:45,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:27:45 BoogieIcfgContainer [2019-09-09 05:27:45,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:27:45,737 INFO L168 Benchmark]: Toolchain (without parser) took 1909.55 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 91.5 MB in the beginning and 99.5 MB in the end (delta: -8.0 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. [2019-09-09 05:27:45,739 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-09 05:27:45,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.06 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 91.0 MB in the beginning and 178.9 MB in the end (delta: -87.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-09-09 05:27:45,741 INFO L168 Benchmark]: Boogie Preprocessor took 42.69 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 177.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-09 05:27:45,742 INFO L168 Benchmark]: RCFGBuilder took 391.77 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 158.2 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2019-09-09 05:27:45,743 INFO L168 Benchmark]: TraceAbstraction took 992.93 ms. Allocated memory is still 202.4 MB. Free memory was 157.6 MB in the beginning and 99.5 MB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. [2019-09-09 05:27:45,747 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 478.06 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 91.0 MB in the beginning and 178.9 MB in the end (delta: -87.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.69 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 177.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 391.77 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 158.2 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 992.93 ms. Allocated memory is still 202.4 MB. Free memory was 157.6 MB in the beginning and 99.5 MB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 140 SDtfs, 50 SDslu, 107 SDs, 0 SdLazy, 71 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9431818181818182 AbsIntWeakeningRatio, 1.0454545454545454 AbsIntAvgWeakeningVarsNumRemoved, 0.2727272727272727 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 1621 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...