/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/Addition01-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 03:48:37,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:48:37,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:48:37,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 03:48:37,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:48:37,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:48:37,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:48:37,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:48:37,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:48:37,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:48:37,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:48:37,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:48:37,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:48:37,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:48:37,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:48:37,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:48:37,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 03:48:37,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:48:37,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:48:37,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:48:37,379 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 [2020-08-22 03:48:37,421 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:48:37,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:48:37,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:48:37,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:48:37,424 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:48:37,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:48:37,425 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:48:37,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:48:37,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:48:37,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:48:37,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:48:37,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:48:37,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:48:37,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:48:37,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:48:37,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:48:37,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:48:37,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:48:37,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:48:37,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:48:37,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:48:37,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:48:37,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:48:37,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:48:37,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:48:37,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:48:37,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:48:37,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:48:37,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:48:37,431 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-08-22 03:48:37,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:48:37,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:48:37,772 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:48:37,773 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:48:37,774 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:48:37,774 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition01-2.c [2020-08-22 03:48:37,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7570a744/fdb1036a0ab44d3890ab340abcacf3b0/FLAGacab6076b [2020-08-22 03:48:38,281 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:48:38,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition01-2.c [2020-08-22 03:48:38,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7570a744/fdb1036a0ab44d3890ab340abcacf3b0/FLAGacab6076b [2020-08-22 03:48:38,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7570a744/fdb1036a0ab44d3890ab340abcacf3b0 [2020-08-22 03:48:38,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:48:38,677 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:48:38,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:48:38,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:48:38,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:48:38,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:48:38" (1/1) ... [2020-08-22 03:48:38,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a2ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38, skipping insertion in model container [2020-08-22 03:48:38,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:48:38" (1/1) ... [2020-08-22 03:48:38,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:48:38,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:48:38,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:48:38,885 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:48:38,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:48:38,916 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:48:38,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38 WrapperNode [2020-08-22 03:48:38,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:48:38,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:48:38,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:48:38,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:48:38,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38" (1/1) ... [2020-08-22 03:48:38,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38" (1/1) ... [2020-08-22 03:48:38,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38" (1/1) ... [2020-08-22 03:48:38,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38" (1/1) ... [2020-08-22 03:48:38,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38" (1/1) ... [2020-08-22 03:48:38,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38" (1/1) ... [2020-08-22 03:48:38,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38" (1/1) ... [2020-08-22 03:48:38,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:48:38,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:48:38,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:48:38,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:48:38,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38" (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 [2020-08-22 03:48:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:48:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:48:39,087 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-08-22 03:48:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:48:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:48:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 03:48:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-08-22 03:48:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:48:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:48:39,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:48:39,295 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:48:39,296 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 03:48:39,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:48:39 BoogieIcfgContainer [2020-08-22 03:48:39,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:48:39,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:48:39,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:48:39,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:48:39,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:48:38" (1/3) ... [2020-08-22 03:48:39,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578adc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:48:39, skipping insertion in model container [2020-08-22 03:48:39,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:48:38" (2/3) ... [2020-08-22 03:48:39,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578adc2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:48:39, skipping insertion in model container [2020-08-22 03:48:39,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:48:39" (3/3) ... [2020-08-22 03:48:39,310 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2020-08-22 03:48:39,321 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:48:39,330 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:48:39,347 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:48:39,382 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:48:39,382 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:48:39,382 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:48:39,383 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:48:39,383 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:48:39,384 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:48:39,384 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:48:39,384 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:48:39,418 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-08-22 03:48:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-22 03:48:39,441 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:48:39,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:48:39,446 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:48:39,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:48:39,462 INFO L82 PathProgramCache]: Analyzing trace with hash -854965079, now seen corresponding path program 1 times [2020-08-22 03:48:39,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:48:39,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538188893] [2020-08-22 03:48:39,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:48:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:39,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:48:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:39,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:48:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:48:39,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538188893] [2020-08-22 03:48:39,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:48:39,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 03:48:39,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322445846] [2020-08-22 03:48:39,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 03:48:39,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:48:39,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 03:48:39,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 03:48:39,941 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2020-08-22 03:48:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:48:40,162 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2020-08-22 03:48:40,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 03:48:40,164 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-08-22 03:48:40,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:48:40,177 INFO L225 Difference]: With dead ends: 38 [2020-08-22 03:48:40,177 INFO L226 Difference]: Without dead ends: 24 [2020-08-22 03:48:40,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:48:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-08-22 03:48:40,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-08-22 03:48:40,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-08-22 03:48:40,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-08-22 03:48:40,236 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2020-08-22 03:48:40,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:48:40,237 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-08-22 03:48:40,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 03:48:40,237 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-08-22 03:48:40,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-22 03:48:40,240 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:48:40,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:48:40,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:48:40,241 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:48:40,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:48:40,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1632999070, now seen corresponding path program 1 times [2020-08-22 03:48:40,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:48:40,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493814408] [2020-08-22 03:48:40,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:48:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:40,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:48:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:40,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:48:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:48:40,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493814408] [2020-08-22 03:48:40,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:48:40,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 03:48:40,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440066072] [2020-08-22 03:48:40,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 03:48:40,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:48:40,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 03:48:40,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 03:48:40,388 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 6 states. [2020-08-22 03:48:40,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:48:40,492 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-08-22 03:48:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 03:48:40,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-22 03:48:40,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:48:40,495 INFO L225 Difference]: With dead ends: 35 [2020-08-22 03:48:40,496 INFO L226 Difference]: Without dead ends: 21 [2020-08-22 03:48:40,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:48:40,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-22 03:48:40,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-22 03:48:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-22 03:48:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-08-22 03:48:40,511 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 17 [2020-08-22 03:48:40,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:48:40,511 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-08-22 03:48:40,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 03:48:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-08-22 03:48:40,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-08-22 03:48:40,516 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:48:40,516 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] [2020-08-22 03:48:40,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 03:48:40,517 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:48:40,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:48:40,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1746800232, now seen corresponding path program 1 times [2020-08-22 03:48:40,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:48:40,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824210414] [2020-08-22 03:48:40,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:48:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:40,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:48:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:40,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:48:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:40,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 03:48:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:48:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 03:48:40,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824210414] [2020-08-22 03:48:40,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:48:40,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 03:48:40,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128563797] [2020-08-22 03:48:40,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 03:48:40,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:48:40,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 03:48:40,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 03:48:40,848 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-08-22 03:48:40,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:48:40,946 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-08-22 03:48:40,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 03:48:40,947 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-08-22 03:48:40,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:48:40,948 INFO L225 Difference]: With dead ends: 21 [2020-08-22 03:48:40,948 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 03:48:40,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-08-22 03:48:40,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 03:48:40,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 03:48:40,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 03:48:40,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 03:48:40,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-08-22 03:48:40,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:48:40,950 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 03:48:40,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 03:48:40,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 03:48:40,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 03:48:40,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 03:48:40,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 03:48:41,004 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 03:48:41,004 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:48:41,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:48:41,005 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 03:48:41,005 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 03:48:41,005 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:48:41,005 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2020-08-22 03:48:41,006 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 26 45) the Hoare annotation is: true [2020-08-22 03:48:41,006 INFO L268 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-08-22 03:48:41,006 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 26 45) no Hoare annotation was computed. [2020-08-22 03:48:41,006 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 26 45) no Hoare annotation was computed. [2020-08-22 03:48:41,006 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-22 03:48:41,006 INFO L268 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-08-22 03:48:41,007 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (or (<= 1 main_~n~0) (= main_~n~0 0)) [2020-08-22 03:48:41,007 INFO L268 CegarLoopResult]: For program point L39-1(line 39) no Hoare annotation was computed. [2020-08-22 03:48:41,007 INFO L268 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-08-22 03:48:41,007 INFO L268 CegarLoopResult]: For program point additionFINAL(lines 13 23) no Hoare annotation was computed. [2020-08-22 03:48:41,007 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m) (<= |addition_#in~n| 0) (not (= |addition_#in~n| 0))) [2020-08-22 03:48:41,008 INFO L268 CegarLoopResult]: For program point L20(lines 20 22) no Hoare annotation was computed. [2020-08-22 03:48:41,008 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-08-22 03:48:41,008 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m) (not (= |addition_#in~n| 0))) [2020-08-22 03:48:41,008 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-08-22 03:48:41,008 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-08-22 03:48:41,008 INFO L271 CegarLoopResult]: At program point additionENTRY(lines 13 23) the Hoare annotation is: true [2020-08-22 03:48:41,009 INFO L268 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-08-22 03:48:41,009 INFO L268 CegarLoopResult]: For program point additionEXIT(lines 13 23) no Hoare annotation was computed. [2020-08-22 03:48:41,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 03:48:41 BoogieIcfgContainer [2020-08-22 03:48:41,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 03:48:41,019 INFO L168 Benchmark]: Toolchain (without parser) took 2340.58 ms. Allocated memory was 141.0 MB in the beginning and 234.4 MB in the end (delta: 93.3 MB). Free memory was 104.7 MB in the beginning and 184.0 MB in the end (delta: -79.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:41,020 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-08-22 03:48:41,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.02 ms. Allocated memory is still 141.0 MB. Free memory was 104.3 MB in the beginning and 94.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:41,022 INFO L168 Benchmark]: Boogie Preprocessor took 23.84 ms. Allocated memory is still 141.0 MB. Free memory was 94.9 MB in the beginning and 93.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:41,023 INFO L168 Benchmark]: RCFGBuilder took 358.69 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 93.5 MB in the beginning and 170.9 MB in the end (delta: -77.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:41,024 INFO L168 Benchmark]: TraceAbstraction took 1713.96 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 170.3 MB in the beginning and 184.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-08-22 03:48:41,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.02 ms. Allocated memory is still 141.0 MB. Free memory was 104.3 MB in the beginning and 94.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.84 ms. Allocated memory is still 141.0 MB. Free memory was 94.9 MB in the beginning and 93.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 358.69 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 93.5 MB in the beginning and 170.9 MB in the end (delta: -77.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1713.96 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 170.3 MB in the beginning and 184.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 36 SDslu, 133 SDs, 0 SdLazy, 165 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 37 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 3835 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 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...