java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:15:23,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:15:23,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:15:23,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:15:23,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:15:23,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:15:23,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:15:23,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:15:23,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:15:23,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:15:23,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:15:23,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:15:23,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:15:23,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:15:23,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:15:23,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:15:23,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:15:23,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:15:23,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:15:23,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:15:23,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:15:23,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:15:23,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:15:23,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:15:23,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:15:23,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:15:23,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:15:23,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:15:23,406 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:15:23,427 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:15:23,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:15:23,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:15:23,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:15:23,432 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:15:23,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:15:23,433 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:15:23,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:15:23,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:15:23,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:15:23,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:15:23,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:15:23,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:15:23,435 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:15:23,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:15:23,436 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:15:23,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:15:23,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:15:23,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:15:23,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:15:23,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:15:23,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:15:23,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:15:23,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:15:23,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:15:23,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:15:23,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:15:23,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:15:23,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:15:23,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:15:23,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:15:23,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:15:23,772 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:15:23,772 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:15:23,773 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2019-10-14 23:15:23,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfacf6c8e/c57f1acafdb84aa5af6601460fc192ec/FLAGdbb8f820d [2019-10-14 23:15:24,359 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:15:24,359 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2019-10-14 23:15:24,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfacf6c8e/c57f1acafdb84aa5af6601460fc192ec/FLAGdbb8f820d [2019-10-14 23:15:24,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfacf6c8e/c57f1acafdb84aa5af6601460fc192ec [2019-10-14 23:15:24,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:15:24,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:15:24,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:15:24,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:15:24,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:15:24,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:24" (1/1) ... [2019-10-14 23:15:24,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74194fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24, skipping insertion in model container [2019-10-14 23:15:24,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:24" (1/1) ... [2019-10-14 23:15:24,739 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:15:24,758 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:15:24,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:15:24,926 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:15:24,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:15:24,960 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:15:24,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24 WrapperNode [2019-10-14 23:15:24,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:15:24,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:15:24,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:15:24,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:15:24,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24" (1/1) ... [2019-10-14 23:15:24,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24" (1/1) ... [2019-10-14 23:15:24,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24" (1/1) ... [2019-10-14 23:15:24,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24" (1/1) ... [2019-10-14 23:15:25,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24" (1/1) ... [2019-10-14 23:15:25,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24" (1/1) ... [2019-10-14 23:15:25,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24" (1/1) ... [2019-10-14 23:15:25,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:15:25,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:15:25,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:15:25,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:15:25,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24" (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 [2019-10-14 23:15:25,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:15:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:15:25,132 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:15:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:15:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:15:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:15:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:15:25,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:15:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:15:25,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:15:25,333 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:15:25,333 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:15:25,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:25 BoogieIcfgContainer [2019-10-14 23:15:25,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:15:25,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:15:25,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:15:25,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:15:25,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:15:24" (1/3) ... [2019-10-14 23:15:25,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d74bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:25, skipping insertion in model container [2019-10-14 23:15:25,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:24" (2/3) ... [2019-10-14 23:15:25,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d74bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:25, skipping insertion in model container [2019-10-14 23:15:25,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:25" (3/3) ... [2019-10-14 23:15:25,343 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2019-10-14 23:15:25,354 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:15:25,362 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-14 23:15:25,376 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-14 23:15:25,430 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:15:25,431 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:15:25,431 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:15:25,431 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:15:25,431 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:15:25,432 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:15:25,432 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:15:25,435 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:15:25,480 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-14 23:15:25,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-14 23:15:25,491 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:25,497 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:25,502 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:25,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:25,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1077508024, now seen corresponding path program 1 times [2019-10-14 23:15:25,515 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:25,516 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685375477] [2019-10-14 23:15:25,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:25,516 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:25,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:25,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685375477] [2019-10-14 23:15:25,713 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:25,714 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:15:25,714 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439700129] [2019-10-14 23:15:25,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:15:25,719 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:25,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:15:25,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:15:25,735 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2019-10-14 23:15:25,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:25,876 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2019-10-14 23:15:25,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:15:25,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-14 23:15:25,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:25,889 INFO L225 Difference]: With dead ends: 30 [2019-10-14 23:15:25,889 INFO L226 Difference]: Without dead ends: 18 [2019-10-14 23:15:25,893 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:15:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-14 23:15:25,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-14 23:15:25,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-14 23:15:25,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-10-14 23:15:25,949 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2019-10-14 23:15:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:25,949 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-10-14 23:15:25,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:15:25,951 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-10-14 23:15:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-14 23:15:25,952 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:25,952 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:25,954 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:25,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:25,955 INFO L82 PathProgramCache]: Analyzing trace with hash 398186682, now seen corresponding path program 1 times [2019-10-14 23:15:25,956 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:25,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772921246] [2019-10-14 23:15:25,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:25,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:25,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:26,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:26,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772921246] [2019-10-14 23:15:26,072 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:26,072 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:15:26,072 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609402490] [2019-10-14 23:15:26,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:15:26,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:26,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:15:26,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:15:26,076 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 5 states. [2019-10-14 23:15:26,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:26,145 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-10-14 23:15:26,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:15:26,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-14 23:15:26,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:26,147 INFO L225 Difference]: With dead ends: 19 [2019-10-14 23:15:26,147 INFO L226 Difference]: Without dead ends: 17 [2019-10-14 23:15:26,148 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:15:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-14 23:15:26,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-10-14 23:15:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-14 23:15:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-10-14 23:15:26,154 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2019-10-14 23:15:26,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:26,155 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-10-14 23:15:26,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:15:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-10-14 23:15:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-14 23:15:26,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:26,156 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:26,156 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:26,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:26,159 INFO L82 PathProgramCache]: Analyzing trace with hash 405408254, now seen corresponding path program 1 times [2019-10-14 23:15:26,160 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:26,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051848092] [2019-10-14 23:15:26,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:26,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:26,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:26,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:26,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051848092] [2019-10-14 23:15:26,267 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:26,267 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:15:26,268 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935040359] [2019-10-14 23:15:26,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:15:26,269 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:26,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:15:26,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:15:26,272 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 6 states. [2019-10-14 23:15:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:26,500 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2019-10-14 23:15:26,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:15:26,501 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-14 23:15:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:26,501 INFO L225 Difference]: With dead ends: 25 [2019-10-14 23:15:26,502 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:15:26,503 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:15:26,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:15:26,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:15:26,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:15:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:15:26,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-14 23:15:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:26,504 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:15:26,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:15:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:15:26,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:15:26,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:15:26,682 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:15:26,683 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_100~0 |old(~__return_100~0)|)) [2019-10-14 23:15:26,683 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:15:26,683 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:15:26,683 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:15:26,683 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:15:26,683 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:15:26,684 INFO L439 ceAbstractionStarter]: At program point L64(lines 34 84) the Hoare annotation is: (let ((.cse0 (<= 0 main_~main__i~0)) (.cse1 (= ~__return_100~0 |old(~__return_100~0)|)) (.cse2 (<= (+ main_~main__i~0 1) main_~main__nlen~0))) (or (and .cse0 (= main_~__VERIFIER_assert__cond~0 1) .cse1 .cse2) (and .cse0 .cse1 (not (= main_~__VERIFIER_assert__cond~2 0)) .cse2 (not (= main_~__VERIFIER_assert__cond~0 0))))) [2019-10-14 23:15:26,684 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-10-14 23:15:26,684 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 97) no Hoare annotation was computed. [2019-10-14 23:15:26,684 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 91) no Hoare annotation was computed. [2019-10-14 23:15:26,684 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 97) no Hoare annotation was computed. [2019-10-14 23:15:26,684 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 80) no Hoare annotation was computed. [2019-10-14 23:15:26,684 INFO L443 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-10-14 23:15:26,685 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 97) the Hoare annotation is: (= ~__return_100~0 |old(~__return_100~0)|) [2019-10-14 23:15:26,685 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 84) no Hoare annotation was computed. [2019-10-14 23:15:26,685 INFO L443 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-10-14 23:15:26,688 INFO L443 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2019-10-14 23:15:26,688 INFO L439 ceAbstractionStarter]: At program point L90(lines 9 97) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= ~__return_100~0 |old(~__return_100~0)|)) [2019-10-14 23:15:26,688 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 65) no Hoare annotation was computed. [2019-10-14 23:15:26,688 INFO L443 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-10-14 23:15:26,689 INFO L439 ceAbstractionStarter]: At program point L74(lines 47 82) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= ~__return_100~0 |old(~__return_100~0)|) (not (= main_~__VERIFIER_assert__cond~1 0)) (<= (+ main_~main__i~0 1) main_~main__nlen~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2019-10-14 23:15:26,689 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 82) no Hoare annotation was computed. [2019-10-14 23:15:26,689 INFO L443 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2019-10-14 23:15:26,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:15:26 BoogieIcfgContainer [2019-10-14 23:15:26,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:15:26,718 INFO L168 Benchmark]: Toolchain (without parser) took 1993.25 ms. Allocated memory was 137.9 MB in the beginning and 232.3 MB in the end (delta: 94.4 MB). Free memory was 102.6 MB in the beginning and 189.4 MB in the end (delta: -86.8 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:26,720 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-14 23:15:26,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.15 ms. Allocated memory is still 137.9 MB. Free memory was 102.4 MB in the beginning and 92.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:26,723 INFO L168 Benchmark]: Boogie Preprocessor took 115.44 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 92.1 MB in the beginning and 178.7 MB in the end (delta: -86.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:26,725 INFO L168 Benchmark]: RCFGBuilder took 257.46 ms. Allocated memory is still 199.8 MB. Free memory was 178.7 MB in the beginning and 166.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:26,727 INFO L168 Benchmark]: TraceAbstraction took 1378.52 ms. Allocated memory was 199.8 MB in the beginning and 232.3 MB in the end (delta: 32.5 MB). Free memory was 166.0 MB in the beginning and 189.4 MB in the end (delta: -23.4 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:26,737 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 237.15 ms. Allocated memory is still 137.9 MB. Free memory was 102.4 MB in the beginning and 92.1 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.44 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 92.1 MB in the beginning and 178.7 MB in the end (delta: -86.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 257.46 ms. Allocated memory is still 199.8 MB. Free memory was 178.7 MB in the beginning and 166.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1378.52 ms. Allocated memory was 199.8 MB in the beginning and 232.3 MB in the end (delta: 32.5 MB). Free memory was 166.0 MB in the beginning and 189.4 MB in the end (delta: -23.4 MB). Peak memory consumption was 86.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i && __return_100 == \old(__return_100) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((0 <= main__i && __return_100 == \old(__return_100)) && !(__VERIFIER_assert__cond == 0)) && main__i + 1 <= main__nlen) && !(__VERIFIER_assert__cond == 0) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((0 <= main__i && __VERIFIER_assert__cond == 1) && __return_100 == \old(__return_100)) && main__i + 1 <= main__nlen) || ((((0 <= main__i && __return_100 == \old(__return_100)) && !(__VERIFIER_assert__cond == 0)) && main__i + 1 <= main__nlen) && !(__VERIFIER_assert__cond == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 3 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 41 SDtfs, 91 SDslu, 50 SDs, 0 SdLazy, 73 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 75 HoareAnnotationTreeSize, 7 FomulaSimplifications, 216 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...