/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure_ptr-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:39:56,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:39:56,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:39:56,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:39:56,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:39:56,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:39:56,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:39:56,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:39:56,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:39:56,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:39:56,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:39:56,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:39:56,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:39:56,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:39:56,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:39:56,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:39:56,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:39:56,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:39:56,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:39:56,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:39:56,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:39:56,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:39:56,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:39:56,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:39:56,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:39:56,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:39:56,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:39:56,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:39:56,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:39:56,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:39:56,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:39:56,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:39:56,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:39:56,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:39:56,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:39:56,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:39:56,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:39:56,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:39:56,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:39:56,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:39:56,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:39:56,166 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 06:39:56,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:39:56,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:39:56,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:39:56,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:39:56,192 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:39:56,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:39:56,193 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:39:56,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:39:56,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:39:56,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:39:56,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:39:56,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:39:56,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:39:56,194 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:39:56,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:39:56,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:39:56,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:39:56,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:39:56,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:39:56,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:39:56,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:39:56,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:39:56,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:39:56,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:39:56,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:39:56,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:39:56,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:39:56,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:39:56,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:39:56,198 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:39:56,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:39:56,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:39:56,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:39:56,692 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:39:56,693 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:39:56,694 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_ptr-1.i [2020-09-25 06:39:56,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1ce63e36/32f9473a9d78416ab2af5c93cd873fdf/FLAG2f6ef141c [2020-09-25 06:39:57,303 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:39:57,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/nested_structure_ptr-1.i [2020-09-25 06:39:57,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1ce63e36/32f9473a9d78416ab2af5c93cd873fdf/FLAG2f6ef141c [2020-09-25 06:39:57,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f1ce63e36/32f9473a9d78416ab2af5c93cd873fdf [2020-09-25 06:39:57,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:39:57,654 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:39:57,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:57,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:39:57,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:39:57,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:57" (1/1) ... [2020-09-25 06:39:57,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42664cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57, skipping insertion in model container [2020-09-25 06:39:57,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:39:57" (1/1) ... [2020-09-25 06:39:57,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:39:57,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:39:57,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:57,926 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:39:57,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:39:57,965 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:39:57,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57 WrapperNode [2020-09-25 06:39:57,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:39:57,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:39:57,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:39:57,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:39:58,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57" (1/1) ... [2020-09-25 06:39:58,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57" (1/1) ... [2020-09-25 06:39:58,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57" (1/1) ... [2020-09-25 06:39:58,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57" (1/1) ... [2020-09-25 06:39:58,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57" (1/1) ... [2020-09-25 06:39:58,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57" (1/1) ... [2020-09-25 06:39:58,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57" (1/1) ... [2020-09-25 06:39:58,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:39:58,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:39:58,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:39:58,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:39:58,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57" (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 06:39:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:39:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:39:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-25 06:39:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:39:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:39:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-25 06:39:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:39:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:39:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:39:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 06:39:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:39:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:39:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:39:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:39:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:39:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:39:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:39:58,446 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:39:58,446 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:39:58,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:58 BoogieIcfgContainer [2020-09-25 06:39:58,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:39:58,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:39:58,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:39:58,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:39:58,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:39:57" (1/3) ... [2020-09-25 06:39:58,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9336fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:58, skipping insertion in model container [2020-09-25 06:39:58,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:39:57" (2/3) ... [2020-09-25 06:39:58,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9336fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:39:58, skipping insertion in model container [2020-09-25 06:39:58,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:39:58" (3/3) ... [2020-09-25 06:39:58,463 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-1.i [2020-09-25 06:39:58,476 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:39:58,489 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:39:58,514 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:39:58,554 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:39:58,554 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:39:58,554 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:39:58,554 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:39:58,555 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:39:58,555 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:39:58,555 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:39:58,555 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:39:58,583 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-25 06:39:58,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 06:39:58,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:58,594 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, 1, 1, 1, 1, 1] [2020-09-25 06:39:58,595 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:58,602 INFO L82 PathProgramCache]: Analyzing trace with hash -26011663, now seen corresponding path program 1 times [2020-09-25 06:39:58,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:58,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [468920328] [2020-09-25 06:39:58,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:58,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:59,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:59,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:39:59,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:59,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1025 [2020-09-25 06:39:59,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:59,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 06:39:59,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:39:59,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:39:59,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:40:00,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:40:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:40:00,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:40:00,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:40:00,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:40:00,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:40:00,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:40:00,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:40:00,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:40:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:40:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:40:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:40:00,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:40:00,672 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 06:40:00,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [468920328] [2020-09-25 06:40:00,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:40:00,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 06:40:00,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898512668] [2020-09-25 06:40:00,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 06:40:00,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:40:00,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 06:40:00,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:40:00,704 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 15 states. [2020-09-25 06:40:01,244 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-09-25 06:40:01,423 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-09-25 06:40:01,625 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-09-25 06:40:01,830 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2020-09-25 06:40:01,996 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2020-09-25 06:40:02,177 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2020-09-25 06:40:02,377 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2020-09-25 06:40:02,622 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 89 [2020-09-25 06:40:02,859 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-09-25 06:40:03,045 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-09-25 06:40:03,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:40:03,306 INFO L93 Difference]: Finished difference Result 58 states and 57 transitions. [2020-09-25 06:40:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 06:40:03,308 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-09-25 06:40:03,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:40:03,317 INFO L225 Difference]: With dead ends: 58 [2020-09-25 06:40:03,318 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:40:03,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2020-09-25 06:40:03,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:40:03,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:40:03,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:40:03,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:40:03,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-09-25 06:40:03,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:40:03,349 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:40:03,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 06:40:03,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:40:03,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:40:03,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:40:03,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:40:03,397 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 06:40:03,397 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 06:40:03,397 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:40:03,398 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 06:40:03,398 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:40:03,398 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-09-25 06:40:03,398 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 8 11) no Hoare annotation was computed. [2020-09-25 06:40:03,398 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 8 11) no Hoare annotation was computed. [2020-09-25 06:40:03,399 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 8 11) the Hoare annotation is: true [2020-09-25 06:40:03,399 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 06:40:03,399 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 06:40:03,399 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 06:40:03,399 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 06:40:03,399 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 06:40:03,399 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 06:40:03,400 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-25 06:40:03,400 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 06:40:03,400 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-25 06:40:03,400 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-25 06:40:03,400 INFO L268 CegarLoopResult]: For program point L31-3(line 31) no Hoare annotation was computed. [2020-09-25 06:40:03,400 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 06:40:03,401 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-25 06:40:03,401 INFO L268 CegarLoopResult]: For program point L31-4(line 31) no Hoare annotation was computed. [2020-09-25 06:40:03,401 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 06:40:03,401 INFO L268 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed. [2020-09-25 06:40:03,401 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 06:40:03,401 INFO L268 CegarLoopResult]: For program point L29-4(line 29) no Hoare annotation was computed. [2020-09-25 06:40:03,401 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 25 34) no Hoare annotation was computed. [2020-09-25 06:40:03,402 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-09-25 06:40:03,402 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 25 34) no Hoare annotation was computed. [2020-09-25 06:40:03,402 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-09-25 06:40:03,402 INFO L268 CegarLoopResult]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-09-25 06:40:03,402 INFO L268 CegarLoopResult]: For program point L32-2(line 32) no Hoare annotation was computed. [2020-09-25 06:40:03,402 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 25 34) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-25 06:40:03,403 INFO L268 CegarLoopResult]: For program point L32-3(line 32) no Hoare annotation was computed. [2020-09-25 06:40:03,403 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 06:40:03,403 INFO L268 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-09-25 06:40:03,403 INFO L264 CegarLoopResult]: At program point L32-5(line 32) the Hoare annotation is: false [2020-09-25 06:40:03,403 INFO L268 CegarLoopResult]: For program point L28-2(line 28) no Hoare annotation was computed. [2020-09-25 06:40:03,404 INFO L268 CegarLoopResult]: For program point L32-6(line 32) no Hoare annotation was computed. [2020-09-25 06:40:03,404 INFO L268 CegarLoopResult]: For program point L32-7(line 32) no Hoare annotation was computed. [2020-09-25 06:40:03,404 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed. [2020-09-25 06:40:03,404 INFO L268 CegarLoopResult]: For program point L32-8(line 32) no Hoare annotation was computed. [2020-09-25 06:40:03,404 INFO L268 CegarLoopResult]: For program point L28-4(line 28) no Hoare annotation was computed. [2020-09-25 06:40:03,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:40:03 BoogieIcfgContainer [2020-09-25 06:40:03,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:40:03,414 INFO L168 Benchmark]: Toolchain (without parser) took 5764.31 ms. Allocated memory was 138.4 MB in the beginning and 287.3 MB in the end (delta: 148.9 MB). Free memory was 101.7 MB in the beginning and 227.5 MB in the end (delta: -125.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:03,415 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 06:40:03,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.41 ms. Allocated memory is still 138.4 MB. Free memory was 101.3 MB in the beginning and 91.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:03,417 INFO L168 Benchmark]: Boogie Preprocessor took 129.42 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 91.3 MB in the beginning and 177.6 MB in the end (delta: -86.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:03,418 INFO L168 Benchmark]: RCFGBuilder took 358.15 ms. Allocated memory is still 200.3 MB. Free memory was 177.6 MB in the beginning and 160.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:03,419 INFO L168 Benchmark]: TraceAbstraction took 4956.73 ms. Allocated memory was 200.3 MB in the beginning and 287.3 MB in the end (delta: 87.0 MB). Free memory was 159.8 MB in the beginning and 227.5 MB in the end (delta: -67.7 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2020-09-25 06:40:03,424 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 310.41 ms. Allocated memory is still 138.4 MB. Free memory was 101.3 MB in the beginning and 91.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.42 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 91.3 MB in the beginning and 177.6 MB in the end (delta: -86.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 358.15 ms. Allocated memory is still 200.3 MB. Free memory was 177.6 MB in the beginning and 160.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4956.73 ms. Allocated memory was 200.3 MB in the beginning and 287.3 MB in the end (delta: 87.0 MB). Free memory was 159.8 MB in the beginning and 227.5 MB in the end (delta: -67.7 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 124 SDslu, 134 SDs, 0 SdLazy, 188 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 17 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 15340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...