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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:41:17,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:41:17,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:41:17,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:41:17,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:41:17,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:41:17,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:41:17,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:41:17,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:41:17,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:41:17,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:41:17,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:41:17,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:41:17,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:41:17,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:41:17,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:41:17,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:41:17,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:41:17,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:41:17,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:41:17,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:41:17,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:41:17,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:41:17,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:41:17,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 13:41:17,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:41:17,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:41:17,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:41:17,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:41:17,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:41:17,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:41:17,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:41:17,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:41:17,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:41:17,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:41:17,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:41:17,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 13:41:17,233 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:41:17,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:41:17,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:41:17,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:41:17,236 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:41:17,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:41:17,236 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:41:17,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:41:17,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:41:17,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:41:17,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:41:17,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:41:17,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:41:17,239 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:41:17,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:41:17,239 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:41:17,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:41:17,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:41:17,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:41:17,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:41:17,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:41:17,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:41:17,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:41:17,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:41:17,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:41:17,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:41:17,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:41:17,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:41:17,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 13:41:17,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:41:17,542 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:41:17,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:41:17,547 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:41:17,548 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:41:17,548 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2019-10-07 13:41:17,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4f032528/b05f8ea743d04c9dbfd158160b5b8ce2/FLAGe07102a44 [2019-10-07 13:41:18,083 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:41:18,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2019-10-07 13:41:18,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4f032528/b05f8ea743d04c9dbfd158160b5b8ce2/FLAGe07102a44 [2019-10-07 13:41:18,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4f032528/b05f8ea743d04c9dbfd158160b5b8ce2 [2019-10-07 13:41:18,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:41:18,485 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:41:18,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:41:18,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:41:18,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:41:18,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:41:18" (1/1) ... [2019-10-07 13:41:18,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fef2b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18, skipping insertion in model container [2019-10-07 13:41:18,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:41:18" (1/1) ... [2019-10-07 13:41:18,501 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:41:18,521 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:41:18,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:41:18,683 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:41:18,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:41:18,714 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:41:18,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18 WrapperNode [2019-10-07 13:41:18,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:41:18,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:41:18,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:41:18,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:41:18,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18" (1/1) ... [2019-10-07 13:41:18,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18" (1/1) ... [2019-10-07 13:41:18,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18" (1/1) ... [2019-10-07 13:41:18,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18" (1/1) ... [2019-10-07 13:41:18,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18" (1/1) ... [2019-10-07 13:41:18,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18" (1/1) ... [2019-10-07 13:41:18,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18" (1/1) ... [2019-10-07 13:41:18,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:41:18,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:41:18,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:41:18,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:41:18,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18" (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 [2019-10-07 13:41:18,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:41:18,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:41:18,896 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:41:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:41:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 13:41:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:41:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:41:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:41:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:41:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:41:19,100 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:41:19,100 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 13:41:19,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:41:19 BoogieIcfgContainer [2019-10-07 13:41:19,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:41:19,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:41:19,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:41:19,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:41:19,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:41:18" (1/3) ... [2019-10-07 13:41:19,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656e601a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:41:19, skipping insertion in model container [2019-10-07 13:41:19,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:41:18" (2/3) ... [2019-10-07 13:41:19,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656e601a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:41:19, skipping insertion in model container [2019-10-07 13:41:19,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:41:19" (3/3) ... [2019-10-07 13:41:19,109 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2019-10-07 13:41:19,121 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:41:19,127 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-07 13:41:19,137 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-07 13:41:19,163 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:41:19,163 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:41:19,163 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:41:19,164 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:41:19,164 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:41:19,164 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:41:19,164 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:41:19,164 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:41:19,181 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-07 13:41:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-07 13:41:19,186 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:41:19,187 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:41:19,189 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:41:19,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:41:19,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1351205091, now seen corresponding path program 1 times [2019-10-07 13:41:19,204 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:41:19,204 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:41:19,204 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:41:19,205 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:41:19,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:41:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:41:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:41:19,436 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:41:19,436 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:41:19,437 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 13:41:19,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:41:19,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:41:19,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:41:19,485 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-10-07 13:41:19,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:41:19,609 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-10-07 13:41:19,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:41:19,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-07 13:41:19,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:41:19,624 INFO L225 Difference]: With dead ends: 29 [2019-10-07 13:41:19,624 INFO L226 Difference]: Without dead ends: 17 [2019-10-07 13:41:19,630 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:41:19,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-07 13:41:19,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-07 13:41:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-07 13:41:19,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-10-07 13:41:19,665 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 9 [2019-10-07 13:41:19,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:41:19,666 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-10-07 13:41:19,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:41:19,666 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-10-07 13:41:19,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 13:41:19,667 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:41:19,667 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:41:19,672 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:41:19,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:41:19,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1428063013, now seen corresponding path program 1 times [2019-10-07 13:41:19,674 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:41:19,674 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:41:19,675 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:41:19,675 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:41:19,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:41:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:41:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:41:19,751 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:41:19,752 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:41:19,752 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 13:41:19,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:41:19,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:41:19,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:41:19,755 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 4 states. [2019-10-07 13:41:19,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:41:19,797 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-10-07 13:41:19,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:41:19,798 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-07 13:41:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:41:19,799 INFO L225 Difference]: With dead ends: 18 [2019-10-07 13:41:19,799 INFO L226 Difference]: Without dead ends: 16 [2019-10-07 13:41:19,800 INFO L606 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 [2019-10-07 13:41:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-07 13:41:19,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-10-07 13:41:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-07 13:41:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-10-07 13:41:19,806 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-10-07 13:41:19,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:41:19,806 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-10-07 13:41:19,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:41:19,807 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-10-07 13:41:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 13:41:19,807 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:41:19,808 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:41:19,808 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:41:19,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:41:19,809 INFO L82 PathProgramCache]: Analyzing trace with hash -2020883031, now seen corresponding path program 1 times [2019-10-07 13:41:19,809 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:41:19,809 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:41:19,809 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:41:19,810 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:41:19,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:41:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:41:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:41:19,893 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:41:19,893 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:41:19,894 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:41:19,894 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:41:19,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:41:19,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:41:19,895 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 5 states. [2019-10-07 13:41:20,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:41:20,044 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-10-07 13:41:20,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 13:41:20,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-07 13:41:20,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:41:20,045 INFO L225 Difference]: With dead ends: 24 [2019-10-07 13:41:20,045 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:41:20,046 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:41:20,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:41:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:41:20,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:41:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:41:20,047 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-07 13:41:20,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:41:20,048 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:41:20,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:41:20,048 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:41:20,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:41:20,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:41:20,175 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:41:20,176 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:41:20,176 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:41:20,176 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 13:41:20,176 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:41:20,176 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:41:20,177 INFO L443 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2019-10-07 13:41:20,177 INFO L439 ceAbstractionStarter]: At program point L64(lines 34 84) the Hoare annotation is: (let ((.cse0 (<= 0 main_~main__i~0)) (.cse1 (<= (+ main_~main__i~0 1) main_~main__nlen~0))) (or (and .cse0 (= main_~__VERIFIER_assert__cond~0 1) .cse1) (and .cse0 (not (= main_~__VERIFIER_assert__cond~2 0)) .cse1 (not (= main_~__VERIFIER_assert__cond~0 0))))) [2019-10-07 13:41:20,177 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-10-07 13:41:20,177 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 97) no Hoare annotation was computed. [2019-10-07 13:41:20,177 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 91) no Hoare annotation was computed. [2019-10-07 13:41:20,178 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 97) no Hoare annotation was computed. [2019-10-07 13:41:20,178 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 80) no Hoare annotation was computed. [2019-10-07 13:41:20,178 INFO L443 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-10-07 13:41:20,178 INFO L443 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-10-07 13:41:20,178 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 8 97) the Hoare annotation is: true [2019-10-07 13:41:20,179 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 84) no Hoare annotation was computed. [2019-10-07 13:41:20,179 INFO L443 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2019-10-07 13:41:20,179 INFO L439 ceAbstractionStarter]: At program point L90(lines 9 97) the Hoare annotation is: (<= 0 main_~main__i~0) [2019-10-07 13:41:20,179 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 65) no Hoare annotation was computed. [2019-10-07 13:41:20,179 INFO L443 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-10-07 13:41:20,180 INFO L439 ceAbstractionStarter]: At program point L74(lines 47 82) the Hoare annotation is: (and (<= 0 main_~main__i~0) (not (= main_~__VERIFIER_assert__cond~1 0)) (<= (+ main_~main__i~0 1) main_~main__nlen~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2019-10-07 13:41:20,180 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 82) no Hoare annotation was computed. [2019-10-07 13:41:20,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:41:20 BoogieIcfgContainer [2019-10-07 13:41:20,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:41:20,203 INFO L168 Benchmark]: Toolchain (without parser) took 1716.41 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 103.9 MB in the beginning and 106.0 MB in the end (delta: -2.1 MB). Peak memory consumption was 55.6 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:20,204 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 13:41:20,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.82 ms. Allocated memory is still 145.8 MB. Free memory was 103.7 MB in the beginning and 94.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:20,206 INFO L168 Benchmark]: Boogie Preprocessor took 130.01 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 94.0 MB in the beginning and 181.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:20,207 INFO L168 Benchmark]: RCFGBuilder took 255.97 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 168.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:20,208 INFO L168 Benchmark]: TraceAbstraction took 1097.27 ms. Allocated memory is still 203.4 MB. Free memory was 167.9 MB in the beginning and 106.0 MB in the end (delta: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 7.1 GB. [2019-10-07 13:41:20,212 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 145.8 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 228.82 ms. Allocated memory is still 145.8 MB. Free memory was 103.7 MB in the beginning and 94.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.01 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 94.0 MB in the beginning and 181.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 255.97 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 168.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1097.27 ms. Allocated memory is still 203.4 MB. Free memory was 167.9 MB in the beginning and 106.0 MB in the end (delta: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((0 <= main__i && !(__VERIFIER_assert__cond == 0)) && main__i + 1 <= main__nlen) && !(__VERIFIER_assert__cond == 0) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((0 <= main__i && __VERIFIER_assert__cond == 1) && main__i + 1 <= main__nlen) || (((0 <= main__i && !(__VERIFIER_assert__cond == 0)) && main__i + 1 <= main__nlen) && !(__VERIFIER_assert__cond == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 3 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 39 SDtfs, 52 SDslu, 47 SDs, 0 SdLazy, 54 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 54 HoareAnnotationTreeSize, 7 FomulaSimplifications, 156 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 870 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...