/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:09:22,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:09:22,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:09:22,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:09:22,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:09:22,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:09:22,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:09:22,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:09:22,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:09:22,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:09:22,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:09:22,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:09:22,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:09:22,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:09:22,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:09:22,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:09:22,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:09:22,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:09:22,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:09:22,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:09:22,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:09:22,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:09:22,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:09:22,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:09:22,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:09:22,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:09:22,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:09:22,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:09:22,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:09:22,282 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:09:22,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:09:22,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:09:22,289 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:09:22,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:09:22,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:09:22,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:09:22,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:09:22,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:09:22,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:09:22,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:09:22,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:09:22,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:09:22,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:09:22,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:09:22,294 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:09:22,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:09:22,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:09:22,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:09:22,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:09:22,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:09:22,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:09:22,296 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:09:22,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:09:22,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:09:22,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:09:22,779 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:09:22,779 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:09:22,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2020-11-07 05:09:22,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f78c71c7/c1aa8f9e0b15433d8fa78c4aad8d9fd4/FLAGd34645fa0 [2020-11-07 05:09:23,456 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:09:23,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-2.c [2020-11-07 05:09:23,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f78c71c7/c1aa8f9e0b15433d8fa78c4aad8d9fd4/FLAGd34645fa0 [2020-11-07 05:09:23,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f78c71c7/c1aa8f9e0b15433d8fa78c4aad8d9fd4 [2020-11-07 05:09:23,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:09:23,864 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:09:23,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:09:23,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:09:23,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:09:23,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:09:23" (1/1) ... [2020-11-07 05:09:23,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f2582eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:23, skipping insertion in model container [2020-11-07 05:09:23,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:09:23" (1/1) ... [2020-11-07 05:09:23,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:09:23,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:09:24,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:09:24,150 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:09:24,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:09:24,183 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:09:24,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24 WrapperNode [2020-11-07 05:09:24,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:09:24,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:09:24,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:09:24,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:09:24,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24" (1/1) ... [2020-11-07 05:09:24,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24" (1/1) ... [2020-11-07 05:09:24,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24" (1/1) ... [2020-11-07 05:09:24,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24" (1/1) ... [2020-11-07 05:09:24,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24" (1/1) ... [2020-11-07 05:09:24,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24" (1/1) ... [2020-11-07 05:09:24,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24" (1/1) ... [2020-11-07 05:09:24,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:09:24,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:09:24,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:09:24,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:09:24,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:09:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:09:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:09:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:09:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-11-07 05:09:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:09:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-11-07 05:09:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:09:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:09:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:09:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:09:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-11-07 05:09:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:09:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:09:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:09:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:09:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:09:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:09:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:09:24,546 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:09:24,547 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 05:09:24,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:09:24 BoogieIcfgContainer [2020-11-07 05:09:24,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:09:24,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:09:24,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:09:24,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:09:24,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:09:23" (1/3) ... [2020-11-07 05:09:24,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc321b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:09:24, skipping insertion in model container [2020-11-07 05:09:24,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:09:24" (2/3) ... [2020-11-07 05:09:24,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc321b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:09:24, skipping insertion in model container [2020-11-07 05:09:24,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:09:24" (3/3) ... [2020-11-07 05:09:24,559 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-2.c [2020-11-07 05:09:24,579 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:09:24,599 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:09:24,618 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:09:24,650 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:09:24,650 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:09:24,650 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:09:24,650 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:09:24,650 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:09:24,651 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:09:24,651 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:09:24,651 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:09:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-11-07 05:09:24,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-07 05:09:24,705 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:09:24,710 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, 1] [2020-11-07 05:09:24,710 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:09:24,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:09:24,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1017164755, now seen corresponding path program 1 times [2020-11-07 05:09:24,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:09:24,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732575345] [2020-11-07 05:09:24,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:09:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:09:25,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:09:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:09:25,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-07 05:09:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:09:25,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:09:25,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732575345] [2020-11-07 05:09:25,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:09:25,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 05:09:25,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722122558] [2020-11-07 05:09:25,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 05:09:25,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:09:25,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 05:09:25,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:09:25,580 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 9 states. [2020-11-07 05:09:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:09:26,149 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-11-07 05:09:26,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 05:09:26,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-11-07 05:09:26,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:09:26,161 INFO L225 Difference]: With dead ends: 53 [2020-11-07 05:09:26,161 INFO L226 Difference]: Without dead ends: 34 [2020-11-07 05:09:26,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-11-07 05:09:26,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-07 05:09:26,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-07 05:09:26,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-07 05:09:26,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-11-07 05:09:26,216 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 28 [2020-11-07 05:09:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:09:26,217 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-11-07 05:09:26,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 05:09:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-11-07 05:09:26,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-07 05:09:26,220 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:09:26,220 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-11-07 05:09:26,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:09:26,221 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:09:26,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:09:26,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1093355786, now seen corresponding path program 1 times [2020-11-07 05:09:26,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:09:26,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526761526] [2020-11-07 05:09:26,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:09:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:09:26,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:09:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:09:26,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-07 05:09:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:09:26,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:09:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:09:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-07 05:09:26,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526761526] [2020-11-07 05:09:26,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:09:26,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-07 05:09:26,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260916650] [2020-11-07 05:09:26,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 05:09:26,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:09:26,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 05:09:26,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:09:26,605 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 11 states. [2020-11-07 05:09:27,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:09:27,179 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-11-07 05:09:27,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 05:09:27,180 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2020-11-07 05:09:27,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:09:27,181 INFO L225 Difference]: With dead ends: 34 [2020-11-07 05:09:27,181 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 05:09:27,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2020-11-07 05:09:27,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 05:09:27,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 05:09:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 05:09:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 05:09:27,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2020-11-07 05:09:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:09:27,184 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 05:09:27,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 05:09:27,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 05:09:27,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 05:09:27,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:09:27,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 05:09:27,886 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,886 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,886 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,887 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,887 INFO L269 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,887 INFO L269 CegarLoopResult]: At program point L4-4(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,887 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 05:09:27,887 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 05:09:27,887 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,888 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 05:09:27,888 INFO L269 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,889 INFO L269 CegarLoopResult]: At program point L4-1(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,890 INFO L269 CegarLoopResult]: At program point L4-2(line 4) the Hoare annotation is: true [2020-11-07 05:09:27,890 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:09:27,890 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:09:27,890 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 05:09:27,890 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 05:09:27,890 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 05:09:27,891 INFO L262 CegarLoopResult]: At program point sumEXIT(lines 6 12) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (<= |sum_#res| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#res| (* |sum_#in~n| (- 1)) (* |sum_#in~m| (- 1))) 4294967296))))) [2020-11-07 05:09:27,891 INFO L262 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2020-11-07 05:09:27,891 INFO L262 CegarLoopResult]: At program point L10-1(line 10) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (<= |sum_#t~ret7| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#t~ret7| (* |sum_#in~n| (- 1)) (* |sum_#in~m| (- 1))) 4294967296)))) (= sum_~m |sum_#in~m|)) [2020-11-07 05:09:27,891 INFO L262 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (<= |sum_#in~n| (* 4294967296 (div |sum_#in~n| 4294967296)))) [2020-11-07 05:09:27,891 INFO L262 CegarLoopResult]: At program point L10-2(line 10) the Hoare annotation is: (let ((.cse0 (* |sum_#in~n| (- 1))) (.cse1 (* |sum_#in~m| (- 1)))) (and (= sum_~n |sum_#in~n|) (<= |sum_#t~ret7| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#t~ret7| .cse0 .cse1) 4294967296)))) (= sum_~m |sum_#in~m|) (<= |sum_#res| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#res| .cse0 .cse1) 4294967296)))))) [2020-11-07 05:09:27,892 INFO L262 CegarLoopResult]: At program point L7(lines 7 11) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2020-11-07 05:09:27,892 INFO L262 CegarLoopResult]: At program point L6(lines 6 12) the Hoare annotation is: (= sum_~n |sum_#in~n|) [2020-11-07 05:09:27,895 INFO L262 CegarLoopResult]: At program point sumFINAL(lines 6 12) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (<= |sum_#res| (+ |sum_#in~n| |sum_#in~m| (* 4294967296 (div (+ |sum_#res| (* |sum_#in~n| (- 1)) (* |sum_#in~m| (- 1))) 4294967296))))) [2020-11-07 05:09:27,895 INFO L269 CegarLoopResult]: At program point sumENTRY(lines 6 12) the Hoare annotation is: true [2020-11-07 05:09:27,895 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 14 21) the Hoare annotation is: true [2020-11-07 05:09:27,895 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 14 21) the Hoare annotation is: true [2020-11-07 05:09:27,895 INFO L262 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: false [2020-11-07 05:09:27,895 INFO L262 CegarLoopResult]: At program point L18(lines 18 20) the Hoare annotation is: (let ((.cse1 (+ (* 4294967296 (div main_~result~0 4294967296)) main_~a~0 main_~b~0)) (.cse0 (+ main_~result~0 (* 4294967296 (div (+ main_~a~0 main_~b~0) 4294967296))))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-11-07 05:09:27,896 INFO L262 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: false [2020-11-07 05:09:27,896 INFO L269 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-11-07 05:09:27,896 INFO L269 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-11-07 05:09:27,896 INFO L262 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (<= (+ main_~a~0 main_~b~0) (+ |main_#t~ret10| (* 4294967296 (div (+ (* |main_#t~ret10| (- 1)) main_~a~0 main_~b~0) 4294967296)))) [2020-11-07 05:09:27,897 INFO L269 CegarLoopResult]: At program point L18-2(lines 14 21) the Hoare annotation is: true [2020-11-07 05:09:27,897 INFO L269 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-11-07 05:09:27,897 INFO L269 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true [2020-11-07 05:09:27,899 INFO L262 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (let ((.cse2 (+ main_~a~0 main_~b~0))) (let ((.cse1 (+ (* 4294967296 (div main_~result~0 4294967296)) main_~a~0 main_~b~0)) (.cse0 (+ main_~result~0 (* 4294967296 (div .cse2 4294967296))))) (and (<= .cse0 .cse1) (<= .cse2 (+ |main_#t~ret10| (* 4294967296 (div (+ (* |main_#t~ret10| (- 1)) main_~a~0 main_~b~0) 4294967296)))) (<= .cse1 .cse0)))) [2020-11-07 05:09:27,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:09:27 BoogieIcfgContainer [2020-11-07 05:09:27,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 05:09:27,931 INFO L168 Benchmark]: Toolchain (without parser) took 4068.41 ms. Allocated memory was 125.8 MB in the beginning and 168.8 MB in the end (delta: 43.0 MB). Free memory was 102.0 MB in the beginning and 130.4 MB in the end (delta: -28.4 MB). Peak memory consumption was 90.7 MB. Max. memory is 8.0 GB. [2020-11-07 05:09:27,934 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 87.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:09:27,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.00 ms. Allocated memory is still 125.8 MB. Free memory was 101.3 MB in the beginning and 92.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 05:09:27,938 INFO L168 Benchmark]: Boogie Preprocessor took 30.46 ms. Allocated memory is still 125.8 MB. Free memory was 92.3 MB in the beginning and 91.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 05:09:27,939 INFO L168 Benchmark]: RCFGBuilder took 331.84 ms. Allocated memory is still 125.8 MB. Free memory was 90.9 MB in the beginning and 77.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-11-07 05:09:27,941 INFO L168 Benchmark]: TraceAbstraction took 3373.63 ms. Allocated memory was 125.8 MB in the beginning and 168.8 MB in the end (delta: 43.0 MB). Free memory was 77.0 MB in the beginning and 130.4 MB in the end (delta: -53.3 MB). Peak memory consumption was 65.5 MB. Max. memory is 8.0 GB. [2020-11-07 05:09:27,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 87.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 314.00 ms. Allocated memory is still 125.8 MB. Free memory was 101.3 MB in the beginning and 92.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.46 ms. Allocated memory is still 125.8 MB. Free memory was 92.3 MB in the beginning and 91.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 331.84 ms. Allocated memory is still 125.8 MB. Free memory was 90.9 MB in the beginning and 77.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3373.63 ms. Allocated memory was 125.8 MB in the beginning and 168.8 MB in the end (delta: 43.0 MB). Free memory was 77.0 MB in the beginning and 130.4 MB in the end (delta: -53.3 MB). Peak memory consumption was 65.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - ProcedureContractResult [Line: 4]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for sum Derived contract for procedure sum: (n == \old(n) && m == \old(m)) && \result <= \old(n) + \old(m) + 4294967296 * ((\result + \old(n) * -1 + \old(m) * -1) / 4294967296) - ProcedureContractResult [Line: 14]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 69 SDslu, 173 SDs, 0 SdLazy, 228 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 52 PreInvPairs, 68 NumberOfFragments, 308 HoareAnnotationTreeSize, 52 FomulaSimplifications, 316 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 39 FomulaSimplificationsInter, 1083 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 14699 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/5 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...