/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:56:27,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:56:27,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:56:27,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:56:27,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:56:27,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:56:27,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:56:27,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:56:27,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:56:27,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:56:27,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:56:27,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:56:27,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:56:27,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:56:27,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:56:27,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:56:27,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:56:27,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:56:27,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:56:27,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:56:27,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:56:27,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:56:27,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:56:27,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:56:27,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:56:27,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:56:27,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:56:27,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:56:27,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:56:27,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:56:27,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:56:27,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:56:27,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:56:27,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:56:27,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:56:27,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:56:27,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:56:27,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:56:27,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:56:27,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:56:27,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:56:27,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:56:27,325 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:56:27,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:56:27,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:56:27,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:56:27,328 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:56:27,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:56:27,329 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:56:27,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:56:27,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:56:27,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:56:27,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:56:27,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:56:27,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:56:27,331 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:56:27,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:56:27,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:56:27,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:56:27,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:56:27,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:56:27,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:56:27,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:56:27,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:56:27,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:56:27,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:56:27,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:56:27,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:56:27,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:56:27,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:56:27,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:56:27,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:56:27,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:56:27,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:56:27,801 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:56:27,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:56:27,803 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:56:27,804 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-09-25 08:56:27,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d1fca8a7/7756c992577041dd828b21e27a359d59/FLAG5c0a91b52 [2020-09-25 08:56:28,395 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:56:28,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2020-09-25 08:56:28,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d1fca8a7/7756c992577041dd828b21e27a359d59/FLAG5c0a91b52 [2020-09-25 08:56:28,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d1fca8a7/7756c992577041dd828b21e27a359d59 [2020-09-25 08:56:28,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:56:28,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:56:28,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:56:28,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:56:28,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:56:28,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:56:28" (1/1) ... [2020-09-25 08:56:28,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770ea115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:28, skipping insertion in model container [2020-09-25 08:56:28,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:56:28" (1/1) ... [2020-09-25 08:56:28,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:56:28,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:56:28,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:56:29,005 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:56:29,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:56:29,044 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:56:29,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29 WrapperNode [2020-09-25 08:56:29,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:56:29,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:56:29,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:56:29,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:56:29,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29" (1/1) ... [2020-09-25 08:56:29,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29" (1/1) ... [2020-09-25 08:56:29,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29" (1/1) ... [2020-09-25 08:56:29,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29" (1/1) ... [2020-09-25 08:56:29,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29" (1/1) ... [2020-09-25 08:56:29,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29" (1/1) ... [2020-09-25 08:56:29,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29" (1/1) ... [2020-09-25 08:56:29,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:56:29,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:56:29,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:56:29,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:56:29,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-25 08:56:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:56:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:56:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2020-09-25 08:56:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 08:56:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:56:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:56:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 08:56:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2020-09-25 08:56:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:56:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:56:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:56:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:56:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:56:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:56:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:56:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:56:29,481 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:56:29,482 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:56:29,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:56:29 BoogieIcfgContainer [2020-09-25 08:56:29,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:56:29,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:56:29,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:56:29,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:56:29,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:56:28" (1/3) ... [2020-09-25 08:56:29,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d027b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:56:29, skipping insertion in model container [2020-09-25 08:56:29,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:56:29" (2/3) ... [2020-09-25 08:56:29,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d027b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:56:29, skipping insertion in model container [2020-09-25 08:56:29,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:56:29" (3/3) ... [2020-09-25 08:56:29,500 INFO L109 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2020-09-25 08:56:29,513 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:56:29,525 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:56:29,551 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:56:29,613 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:56:29,613 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:56:29,613 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:56:29,614 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:56:29,614 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:56:29,614 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:56:29,614 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:56:29,614 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:56:29,646 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-09-25 08:56:29,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 08:56:29,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:29,655 INFO L422 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] [2020-09-25 08:56:29,655 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:29,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:29,663 INFO L82 PathProgramCache]: Analyzing trace with hash 474032392, now seen corresponding path program 1 times [2020-09-25 08:56:29,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:29,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138926338] [2020-09-25 08:56:29,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:29,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:30,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:30,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 08:56:30,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:30,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 08:56:30,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:30,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:56:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:56:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:56:30,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:56:30,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:30,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:30,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:30,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:30,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 08:56:30,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:30,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:30,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:30,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:30,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:56:30,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138926338] [2020-09-25 08:56:30,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:30,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:56:30,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028000870] [2020-09-25 08:56:30,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:56:30,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:30,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:56:30,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:56:30,411 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 7 states. [2020-09-25 08:56:30,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:30,693 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2020-09-25 08:56:30,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:56:30,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-09-25 08:56:30,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:30,709 INFO L225 Difference]: With dead ends: 65 [2020-09-25 08:56:30,709 INFO L226 Difference]: Without dead ends: 37 [2020-09-25 08:56:30,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:56:30,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-25 08:56:30,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-09-25 08:56:30,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-25 08:56:30,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2020-09-25 08:56:30,769 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 22 [2020-09-25 08:56:30,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:30,770 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2020-09-25 08:56:30,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:56:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2020-09-25 08:56:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 08:56:30,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:30,772 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:30,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:56:30,773 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:30,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:30,774 INFO L82 PathProgramCache]: Analyzing trace with hash 705842607, now seen corresponding path program 1 times [2020-09-25 08:56:30,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:30,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924143990] [2020-09-25 08:56:30,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:30,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:31,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:32,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:32,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:56:32,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:56:32,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1654 [2020-09-25 08:56:32,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:32,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 08:56:32,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:56:32,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 08:56:32,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:56:32,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:32,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:32,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:32,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:32,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:32,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:56:32,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:32,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:32,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:32,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:32,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:32,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:56:32,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924143990] [2020-09-25 08:56:32,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:56:32,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 08:56:32,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421430032] [2020-09-25 08:56:32,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 08:56:32,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:32,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 08:56:32,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-25 08:56:32,798 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 14 states. [2020-09-25 08:56:33,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:33,526 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2020-09-25 08:56:33,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 08:56:33,527 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 34 [2020-09-25 08:56:33,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:33,528 INFO L225 Difference]: With dead ends: 55 [2020-09-25 08:56:33,528 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 08:56:33,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=573, Unknown=0, NotChecked=0, Total=702 [2020-09-25 08:56:33,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 08:56:33,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-09-25 08:56:33,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 08:56:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2020-09-25 08:56:33,540 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 34 [2020-09-25 08:56:33,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:33,541 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2020-09-25 08:56:33,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 08:56:33,541 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2020-09-25 08:56:33,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 08:56:33,542 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:33,543 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:33,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:56:33,543 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:33,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:33,544 INFO L82 PathProgramCache]: Analyzing trace with hash 180793302, now seen corresponding path program 2 times [2020-09-25 08:56:33,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:33,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635439392] [2020-09-25 08:56:33,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:33,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:33,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:36,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:36,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 08:56:36,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:56:36,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2797 [2020-09-25 08:56:36,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:36,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:36,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 08:56:36,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 08:56:36,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 08:56:36,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:36,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:36,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:36,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:36,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:36,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:36,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:56:36,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:36,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:36,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:36,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:36,694 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:56:36,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635439392] [2020-09-25 08:56:36,695 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:56:36,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 08:56:36,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678041029] [2020-09-25 08:56:36,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 08:56:36,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:36,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 08:56:36,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2020-09-25 08:56:36,699 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 20 states. [2020-09-25 08:56:37,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:37,688 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2020-09-25 08:56:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 08:56:37,689 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 46 [2020-09-25 08:56:37,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:37,691 INFO L225 Difference]: With dead ends: 67 [2020-09-25 08:56:37,691 INFO L226 Difference]: Without dead ends: 61 [2020-09-25 08:56:37,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=278, Invalid=1444, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 08:56:37,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-25 08:56:37,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-09-25 08:56:37,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 08:56:37,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2020-09-25 08:56:37,711 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 46 [2020-09-25 08:56:37,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:37,711 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2020-09-25 08:56:37,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 08:56:37,711 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2020-09-25 08:56:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 08:56:37,717 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:56:37,717 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:56:37,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:56:37,718 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:56:37,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:56:37,718 INFO L82 PathProgramCache]: Analyzing trace with hash -68284547, now seen corresponding path program 3 times [2020-09-25 08:56:37,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:56:37,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947246418] [2020-09-25 08:56:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:56:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:37,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:38,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:41,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:41,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 08:56:41,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:56:41,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3431 [2020-09-25 08:56:41,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:41,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 08:56:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 08:56:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:56:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:56:41,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:56:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:56:41,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:56:41,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:56:41,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:56:41,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:56:41,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:56:41,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:56:41,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:56:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:56:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:56:41,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:56:41,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:56:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 08:56:41,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947246418] [2020-09-25 08:56:41,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:56:41,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 08:56:41,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373699027] [2020-09-25 08:56:41,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 08:56:41,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:56:41,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 08:56:41,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:56:41,449 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 15 states. [2020-09-25 08:56:41,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:56:41,999 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-09-25 08:56:42,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 08:56:42,000 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2020-09-25 08:56:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:56:42,003 INFO L225 Difference]: With dead ends: 59 [2020-09-25 08:56:42,003 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:56:42,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=877, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 08:56:42,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:56:42,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:56:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:56:42,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:56:42,005 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2020-09-25 08:56:42,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:56:42,007 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:56:42,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 08:56:42,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:56:42,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:56:42,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:56:42,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 08:56:42,398 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 08:56:42,398 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 08:56:42,399 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 08:56:42,399 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 08:56:42,399 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 08:56:42,399 INFO L268 CegarLoopResult]: For program point fooEXIT(lines 9 18) no Hoare annotation was computed. [2020-09-25 08:56:42,400 INFO L264 CegarLoopResult]: At program point fooENTRY(lines 9 18) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse0 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (<= .cse0 11)) (<= .cse1 11)) (or (<= .cse1 20) (not (<= .cse0 20))) (or (not (= .cse0 10)) (= 10 .cse1)) (or (<= .cse1 12) (not (<= .cse0 12))))) [2020-09-25 08:56:42,400 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 08:56:42,400 INFO L268 CegarLoopResult]: For program point fooErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-09-25 08:56:42,400 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 08:56:42,401 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (let ((.cse2 (select (select |old(#memory_int)| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse1 (select (select |#memory_int| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse0 (select (select |#memory_int| foo_~p.base) foo_~p.offset))) (and (or (and (<= .cse0 19) (<= .cse1 20)) (not (<= .cse2 20))) (or (not (= .cse2 10)) (and (= .cse0 10) (= 10 .cse1))) (or (not (<= .cse2 11)) (and (<= .cse1 11) (<= .cse0 11))))) [2020-09-25 08:56:42,401 INFO L268 CegarLoopResult]: For program point L12-1(lines 12 17) no Hoare annotation was computed. [2020-09-25 08:56:42,401 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 08:56:42,402 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 08:56:42,402 INFO L268 CegarLoopResult]: For program point L10-1(lines 10 17) no Hoare annotation was computed. [2020-09-25 08:56:42,402 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 08:56:42,402 INFO L268 CegarLoopResult]: For program point L10-2(line 10) no Hoare annotation was computed. [2020-09-25 08:56:42,402 INFO L268 CegarLoopResult]: For program point L10-3(line 10) no Hoare annotation was computed. [2020-09-25 08:56:42,402 INFO L268 CegarLoopResult]: For program point L10-4(lines 9 18) no Hoare annotation was computed. [2020-09-25 08:56:42,402 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 08:56:42,403 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 08:56:42,403 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 08:56:42,403 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 08:56:42,403 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 20 26) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-25 08:56:42,403 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 20 26) no Hoare annotation was computed. [2020-09-25 08:56:42,403 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 08:56:42,403 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 20 26) no Hoare annotation was computed. [2020-09-25 08:56:42,404 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 08:56:42,404 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (= (select (select |#memory_int| main_~p~0.base) main_~p~0.offset) 10) [2020-09-25 08:56:42,404 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 08:56:42,404 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-25 08:56:42,404 INFO L268 CegarLoopResult]: For program point L20(lines 20 26) no Hoare annotation was computed. [2020-09-25 08:56:42,405 INFO L268 CegarLoopResult]: For program point L22-2(line 22) no Hoare annotation was computed. [2020-09-25 08:56:42,405 INFO L268 CegarLoopResult]: For program point L22-3(line 22) no Hoare annotation was computed. [2020-09-25 08:56:42,405 INFO L268 CegarLoopResult]: For program point L5-4(line 5) no Hoare annotation was computed. [2020-09-25 08:56:42,405 INFO L268 CegarLoopResult]: For program point plusFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-25 08:56:42,405 INFO L264 CegarLoopResult]: At program point plusENTRY(lines 4 7) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (= .cse0 10) (not (= .cse1 10))) (or (<= .cse0 11) (not (<= .cse1 11))) (or (<= .cse0 19) (not (<= .cse1 19))))) [2020-09-25 08:56:42,405 INFO L268 CegarLoopResult]: For program point plusEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-25 08:56:42,406 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| plus_~p.base) plus_~p.offset)) (.cse1 (select (select |old(#memory_int)| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (<= .cse0 12) (not (<= .cse1 11))) (or (and (<= (select (select |#memory_int| |plus_#in~p.base|) |plus_#in~p.offset|) 11) (<= .cse0 11)) (not (= .cse1 10))) (or (<= .cse0 20) (not (<= .cse1 19))))) [2020-09-25 08:56:42,406 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 08:56:42,406 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 08:56:42,406 INFO L268 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed. [2020-09-25 08:56:42,406 INFO L268 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2020-09-25 08:56:42,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:56:42 BoogieIcfgContainer [2020-09-25 08:56:42,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:56:42,420 INFO L168 Benchmark]: Toolchain (without parser) took 13677.86 ms. Allocated memory was 147.3 MB in the beginning and 324.0 MB in the end (delta: 176.7 MB). Free memory was 102.5 MB in the beginning and 263.6 MB in the end (delta: -161.1 MB). Peak memory consumption was 161.7 MB. Max. memory is 7.1 GB. [2020-09-25 08:56:42,421 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:56:42,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.06 ms. Allocated memory is still 147.3 MB. Free memory was 101.8 MB in the beginning and 92.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 08:56:42,424 INFO L168 Benchmark]: Boogie Preprocessor took 126.21 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 182.0 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-25 08:56:42,431 INFO L168 Benchmark]: RCFGBuilder took 315.18 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 166.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2020-09-25 08:56:42,432 INFO L168 Benchmark]: TraceAbstraction took 12927.34 ms. Allocated memory was 203.9 MB in the beginning and 324.0 MB in the end (delta: 120.1 MB). Free memory was 165.6 MB in the beginning and 263.6 MB in the end (delta: -98.0 MB). Peak memory consumption was 168.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:56:42,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 300.06 ms. Allocated memory is still 147.3 MB. Free memory was 101.8 MB in the beginning and 92.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.21 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 182.0 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 315.18 ms. Allocated memory is still 203.9 MB. Free memory was 182.0 MB in the beginning and 166.3 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12927.34 ms. Allocated memory was 203.9 MB in the beginning and 324.0 MB in the end (delta: 120.1 MB). Free memory was 165.6 MB in the beginning and 263.6 MB in the end (delta: -98.0 MB). Peak memory consumption was 168.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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 5 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.4s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 109 SDtfs, 203 SDslu, 432 SDs, 0 SdLazy, 990 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=3, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 19 PreInvPairs, 19 NumberOfFragments, 266 HoareAnnotationTreeSize, 19 FomulaSimplifications, 630 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 293 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 24216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 45/66 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...