/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_b2_o3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 00:52:21,572 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 00:52:21,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 00:52:21,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 00:52:21,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 00:52:21,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 00:52:21,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 00:52:21,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 00:52:21,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 00:52:21,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 00:52:21,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 00:52:21,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 00:52:21,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 00:52:21,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 00:52:21,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 00:52:21,655 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 [2020-07-21 00:52:21,683 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 00:52:21,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 00:52:21,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 00:52:21,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 00:52:21,688 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 00:52:21,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 00:52:21,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 00:52:21,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 00:52:21,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 00:52:21,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 00:52:21,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 00:52:21,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 00:52:21,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 00:52:21,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 00:52:21,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 00:52:21,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 00:52:21,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 00:52:21,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 00:52:21,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 00:52:21,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 00:52:21,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 00:52:21,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 00:52:21,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 00:52:21,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 00:52:21,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 00:52:21,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 00:52:21,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:52:21,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 00:52:21,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 00:52:21,696 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 00:52:21,998 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 00:52:22,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 00:52:22,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 00:52:22,014 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 00:52:22,015 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 00:52:22,015 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_b2_o3.c [2020-07-21 00:52:22,083 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c57dc3898/adfc57a903ca41a68eeb2c8ec108e570/FLAG41e5eac71 [2020-07-21 00:52:22,572 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 00:52:22,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_b2_o3.c [2020-07-21 00:52:22,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c57dc3898/adfc57a903ca41a68eeb2c8ec108e570/FLAG41e5eac71 [2020-07-21 00:52:22,931 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c57dc3898/adfc57a903ca41a68eeb2c8ec108e570 [2020-07-21 00:52:22,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 00:52:22,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 00:52:22,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 00:52:22,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 00:52:22,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 00:52:22,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:22" (1/1) ... [2020-07-21 00:52:22,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f318255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:22, skipping insertion in model container [2020-07-21 00:52:22,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:22" (1/1) ... [2020-07-21 00:52:22,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 00:52:22,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 00:52:23,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 00:52:23,185 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 00:52:23,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 00:52:23,224 INFO L208 MainTranslator]: Completed translation [2020-07-21 00:52:23,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23 WrapperNode [2020-07-21 00:52:23,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 00:52:23,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 00:52:23,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 00:52:23,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 00:52:23,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23" (1/1) ... [2020-07-21 00:52:23,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23" (1/1) ... [2020-07-21 00:52:23,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23" (1/1) ... [2020-07-21 00:52:23,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23" (1/1) ... [2020-07-21 00:52:23,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23" (1/1) ... [2020-07-21 00:52:23,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23" (1/1) ... [2020-07-21 00:52:23,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23" (1/1) ... [2020-07-21 00:52:23,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 00:52:23,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 00:52:23,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 00:52:23,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 00:52:23,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23" (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 [2020-07-21 00:52:23,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 00:52:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 00:52:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-07-21 00:52:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 00:52:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-21 00:52:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 00:52:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-07-21 00:52:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 00:52:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 00:52:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 00:52:23,675 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 00:52:23,675 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 00:52:23,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:23 BoogieIcfgContainer [2020-07-21 00:52:23,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 00:52:23,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 00:52:23,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 00:52:23,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 00:52:23,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:52:22" (1/3) ... [2020-07-21 00:52:23,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32822038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:23, skipping insertion in model container [2020-07-21 00:52:23,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:23" (2/3) ... [2020-07-21 00:52:23,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32822038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:23, skipping insertion in model container [2020-07-21 00:52:23,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:23" (3/3) ... [2020-07-21 00:52:23,723 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b2_o3.c [2020-07-21 00:52:23,744 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 00:52:23,762 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 00:52:23,783 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 00:52:23,827 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 00:52:23,827 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 00:52:23,828 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 00:52:23,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 00:52:23,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 00:52:23,829 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 00:52:23,829 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 00:52:23,829 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 00:52:23,850 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-21 00:52:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-21 00:52:23,858 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:52:23,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:52:23,860 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:52:23,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:52:23,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1250208381, now seen corresponding path program 1 times [2020-07-21 00:52:23,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:52:23,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55230748] [2020-07-21 00:52:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:52:23,957 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 00:52:23,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:52:23,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 00:52:23,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:52:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 00:52:24,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 00:52:24,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55230748] [2020-07-21 00:52:24,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 00:52:24,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 00:52:24,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781524699] [2020-07-21 00:52:24,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 00:52:24,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:52:24,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 00:52:24,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 00:52:24,088 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2020-07-21 00:52:24,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:52:24,163 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-07-21 00:52:24,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 00:52:24,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-21 00:52:24,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:52:24,177 INFO L225 Difference]: With dead ends: 33 [2020-07-21 00:52:24,177 INFO L226 Difference]: Without dead ends: 19 [2020-07-21 00:52:24,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 00:52:24,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-21 00:52:24,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-21 00:52:24,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-21 00:52:24,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-07-21 00:52:24,249 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2020-07-21 00:52:24,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:52:24,252 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-07-21 00:52:24,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 00:52:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-07-21 00:52:24,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-21 00:52:24,266 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:52:24,266 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:52:24,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:52:24,484 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:52:24,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:52:24,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1951994857, now seen corresponding path program 1 times [2020-07-21 00:52:24,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:52:24,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1020888279] [2020-07-21 00:52:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:52:24,540 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 00:52:24,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:52:24,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 00:52:24,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:52:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-21 00:52:24,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 00:52:24,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1020888279] [2020-07-21 00:52:24,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 00:52:24,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 00:52:24,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418555658] [2020-07-21 00:52:24,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 00:52:24,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:52:24,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 00:52:24,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 00:52:24,587 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 5 states. [2020-07-21 00:52:24,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:52:24,626 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2020-07-21 00:52:24,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 00:52:24,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-07-21 00:52:24,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:52:24,629 INFO L225 Difference]: With dead ends: 31 [2020-07-21 00:52:24,629 INFO L226 Difference]: Without dead ends: 23 [2020-07-21 00:52:24,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 00:52:24,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-07-21 00:52:24,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-07-21 00:52:24,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-21 00:52:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2020-07-21 00:52:24,639 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2020-07-21 00:52:24,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:52:24,640 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2020-07-21 00:52:24,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 00:52:24,641 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-07-21 00:52:24,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-21 00:52:24,642 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:52:24,642 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:52:24,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:52:24,858 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:52:24,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:52:24,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1923365706, now seen corresponding path program 1 times [2020-07-21 00:52:24,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:52:24,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786324144] [2020-07-21 00:52:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:52:24,913 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 00:52:24,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:52:24,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 00:52:24,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:52:25,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-21 00:52:25,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:52:25,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-21 00:52:25,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786324144] [2020-07-21 00:52:25,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:52:25,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-07-21 00:52:25,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274321921] [2020-07-21 00:52:25,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-21 00:52:25,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:52:25,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-21 00:52:25,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-07-21 00:52:25,273 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 14 states. [2020-07-21 00:52:25,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:52:25,422 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2020-07-21 00:52:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-21 00:52:25,423 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 20 [2020-07-21 00:52:25,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:52:25,424 INFO L225 Difference]: With dead ends: 35 [2020-07-21 00:52:25,424 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 00:52:25,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-07-21 00:52:25,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 00:52:25,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 00:52:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 00:52:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 00:52:25,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-07-21 00:52:25,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:52:25,428 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 00:52:25,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-21 00:52:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 00:52:25,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 00:52:25,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:52:25,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 00:52:25,737 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-21 00:52:25,737 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 00:52:25,738 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 00:52:25,738 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 00:52:25,738 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 00:52:25,738 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 00:52:25,739 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2020-07-21 00:52:25,739 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2020-07-21 00:52:25,739 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2020-07-21 00:52:25,739 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-07-21 00:52:25,739 INFO L268 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-07-21 00:52:25,740 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-07-21 00:52:25,740 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-07-21 00:52:25,740 INFO L268 CegarLoopResult]: For program point L14-2(lines 11 17) no Hoare annotation was computed. [2020-07-21 00:52:25,740 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2020-07-21 00:52:25,740 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2020-07-21 00:52:25,740 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2020-07-21 00:52:25,741 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-07-21 00:52:25,741 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-07-21 00:52:25,741 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-21 00:52:25,741 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-07-21 00:52:25,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:52:25 BoogieIcfgContainer [2020-07-21 00:52:25,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 00:52:25,757 INFO L168 Benchmark]: Toolchain (without parser) took 2808.46 ms. Allocated memory was 145.2 MB in the beginning and 235.9 MB in the end (delta: 90.7 MB). Free memory was 101.9 MB in the beginning and 206.0 MB in the end (delta: -104.1 MB). Peak memory consumption was 76.9 MB. Max. memory is 7.1 GB. [2020-07-21 00:52:25,761 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 00:52:25,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.39 ms. Allocated memory is still 145.2 MB. Free memory was 101.5 MB in the beginning and 92.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-07-21 00:52:25,765 INFO L168 Benchmark]: Boogie Preprocessor took 41.36 ms. Allocated memory is still 145.2 MB. Free memory was 92.4 MB in the beginning and 91.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-21 00:52:25,774 INFO L168 Benchmark]: RCFGBuilder took 414.18 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 90.9 MB in the beginning and 172.8 MB in the end (delta: -82.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 00:52:25,775 INFO L168 Benchmark]: TraceAbstraction took 2063.01 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 172.2 MB in the beginning and 206.0 MB in the end (delta: -33.9 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2020-07-21 00:52:25,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.39 ms. Allocated memory is still 145.2 MB. Free memory was 101.5 MB in the beginning and 92.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.36 ms. Allocated memory is still 145.2 MB. Free memory was 92.4 MB in the beginning and 91.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.18 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 90.9 MB in the beginning and 172.8 MB in the end (delta: -82.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2063.01 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 172.2 MB in the beginning and 206.0 MB in the end (delta: -33.9 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 8 SDslu, 255 SDs, 0 SdLazy, 61 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 2501 SizeOfPredicates, 4 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/12 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...