/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-zilu/benchmark17_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:51:00,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:51:00,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:51:00,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 04:51:00,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 04:51:00,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 04:51:00,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 04:51:00,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 04:51:00,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 04:51:00,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 04:51:00,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 04:51:00,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 04:51:00,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 04:51:00,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 04:51:00,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 04:51:00,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 04:51:00,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 04:51:00,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 04:51:00,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 04:51:00,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 04:51:00,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 04:51:00,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 04:51:00,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 04:51:00,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 04:51:00,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 04:51:00,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:51:00,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:51:00,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:51:00,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:51:00,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:51:00,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:51:00,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:51:00,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:51:00,319 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:51:00,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:51:00,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:51:00,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:51:00,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:51:00,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:51:00,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:51:00,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:51:00,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:51:00,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:51:00,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:51:00,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:51:00,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:51:00,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:51:00,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:51:00,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:51:00,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:51:00,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:51:00,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:51:00,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:51:00,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:51:00,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:51:00,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:51:00,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:51:00,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:51:00,798 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:51:00,798 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:51:00,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark17_conjunctive.i [2020-12-22 04:51:00,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5312f6fe5/878f0d9195c54182b0b9103e80c2c58e/FLAG2a1d64f53 [2020-12-22 04:51:01,521 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:51:01,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark17_conjunctive.i [2020-12-22 04:51:01,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5312f6fe5/878f0d9195c54182b0b9103e80c2c58e/FLAG2a1d64f53 [2020-12-22 04:51:01,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5312f6fe5/878f0d9195c54182b0b9103e80c2c58e [2020-12-22 04:51:01,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:51:01,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:51:01,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:51:01,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:51:01,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:51:01,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:51:01" (1/1) ... [2020-12-22 04:51:01,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@efcf072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:01, skipping insertion in model container [2020-12-22 04:51:01,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:51:01" (1/1) ... [2020-12-22 04:51:01,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:51:01,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:51:02,097 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark17_conjunctive.i[873,886] [2020-12-22 04:51:02,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:51:02,118 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:51:02,133 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark17_conjunctive.i[873,886] [2020-12-22 04:51:02,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:51:02,153 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:51:02,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02 WrapperNode [2020-12-22 04:51:02,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:51:02,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:51:02,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:51:02,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:51:02,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (1/1) ... [2020-12-22 04:51:02,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (1/1) ... [2020-12-22 04:51:02,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:51:02,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:51:02,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:51:02,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:51:02,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (1/1) ... [2020-12-22 04:51:02,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (1/1) ... [2020-12-22 04:51:02,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (1/1) ... [2020-12-22 04:51:02,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (1/1) ... [2020-12-22 04:51:02,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (1/1) ... [2020-12-22 04:51:02,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (1/1) ... [2020-12-22 04:51:02,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (1/1) ... [2020-12-22 04:51:02,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:51:02,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:51:02,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:51:02,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:51:02,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (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 [2020-12-22 04:51:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:51:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:51:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:51:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:51:02,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:51:02,530 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-22 04:51:02,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:51:02 BoogieIcfgContainer [2020-12-22 04:51:02,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:51:02,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:51:02,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:51:02,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:51:02,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:51:01" (1/3) ... [2020-12-22 04:51:02,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5d0dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:51:02, skipping insertion in model container [2020-12-22 04:51:02,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:02" (2/3) ... [2020-12-22 04:51:02,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5d0dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:51:02, skipping insertion in model container [2020-12-22 04:51:02,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:51:02" (3/3) ... [2020-12-22 04:51:02,543 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark17_conjunctive.i [2020-12-22 04:51:02,550 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:51:02,555 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 04:51:02,575 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 04:51:02,602 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:51:02,603 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:51:02,603 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:51:02,603 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:51:02,603 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:51:02,603 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:51:02,604 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:51:02,604 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:51:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-12-22 04:51:02,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 04:51:02,662 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:51:02,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:51:02,664 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:51:02,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:51:02,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1807089479, now seen corresponding path program 1 times [2020-12-22 04:51:02,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:51:02,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817982035] [2020-12-22 04:51:02,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:51:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:51:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:51:02,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817982035] [2020-12-22 04:51:02,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:51:02,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 04:51:02,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137430804] [2020-12-22 04:51:02,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 04:51:02,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:51:02,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 04:51:02,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:51:02,893 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-12-22 04:51:02,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:51:02,909 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2020-12-22 04:51:02,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 04:51:02,910 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-22 04:51:02,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:51:02,919 INFO L225 Difference]: With dead ends: 20 [2020-12-22 04:51:02,920 INFO L226 Difference]: Without dead ends: 8 [2020-12-22 04:51:02,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:51:02,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-22 04:51:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-22 04:51:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-22 04:51:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-22 04:51:02,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2020-12-22 04:51:02,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:51:02,958 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-22 04:51:02,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 04:51:02,958 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-22 04:51:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 04:51:02,958 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:51:02,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:51:02,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 04:51:02,959 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:51:02,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:51:02,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1806970315, now seen corresponding path program 1 times [2020-12-22 04:51:02,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:51:02,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105652894] [2020-12-22 04:51:02,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:51:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:51:03,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:51:03,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105652894] [2020-12-22 04:51:03,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:51:03,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 04:51:03,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851909716] [2020-12-22 04:51:03,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 04:51:03,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:51:03,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 04:51:03,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:51:03,078 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2020-12-22 04:51:03,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:51:03,149 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-12-22 04:51:03,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:51:03,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-22 04:51:03,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:51:03,151 INFO L225 Difference]: With dead ends: 13 [2020-12-22 04:51:03,151 INFO L226 Difference]: Without dead ends: 9 [2020-12-22 04:51:03,152 INFO L677 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 [2020-12-22 04:51:03,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-22 04:51:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-22 04:51:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-22 04:51:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-22 04:51:03,156 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-12-22 04:51:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:51:03,156 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-22 04:51:03,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 04:51:03,156 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-22 04:51:03,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 04:51:03,157 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:51:03,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:51:03,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 04:51:03,157 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:51:03,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:51:03,158 INFO L82 PathProgramCache]: Analyzing trace with hash 183170323, now seen corresponding path program 1 times [2020-12-22 04:51:03,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:51:03,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778533970] [2020-12-22 04:51:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:51:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:51:03,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:51:03,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778533970] [2020-12-22 04:51:03,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329713398] [2020-12-22 04:51:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:51:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:51:03,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 04:51:03,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:51:03,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:51:03,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-22 04:51:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:51:03,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:51:03,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-12-22 04:51:03,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018042734] [2020-12-22 04:51:03,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 04:51:03,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:51:03,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 04:51:03,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-22 04:51:03,492 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 10 states. [2020-12-22 04:51:03,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:51:03,622 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-12-22 04:51:03,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 04:51:03,622 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 8 [2020-12-22 04:51:03,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:51:03,623 INFO L225 Difference]: With dead ends: 12 [2020-12-22 04:51:03,623 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 04:51:03,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-12-22 04:51:03,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 04:51:03,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 04:51:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 04:51:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 04:51:03,625 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-12-22 04:51:03,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:51:03,626 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 04:51:03,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 04:51:03,626 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 04:51:03,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 04:51:03,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-22 04:51:03,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 04:51:03,873 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 04:51:03,874 INFO L192 CegarLoopUtils]: At program point L29(lines 19 30) the Hoare annotation is: true [2020-12-22 04:51:03,874 INFO L189 CegarLoopUtils]: For program point L23(line 23) no Hoare annotation was computed. [2020-12-22 04:51:03,874 INFO L189 CegarLoopUtils]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-12-22 04:51:03,874 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 04:51:03,874 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 04:51:03,875 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 04:51:03,875 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-12-22 04:51:03,875 INFO L185 CegarLoopUtils]: At program point L24-2(lines 24 27) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0) [2020-12-22 04:51:03,875 INFO L189 CegarLoopUtils]: For program point L24-3(lines 24 27) no Hoare annotation was computed. [2020-12-22 04:51:03,875 INFO L189 CegarLoopUtils]: For program point L16(line 16) no Hoare annotation was computed. [2020-12-22 04:51:03,876 INFO L189 CegarLoopUtils]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-12-22 04:51:03,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:51:03 BoogieIcfgContainer [2020-12-22 04:51:03,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 04:51:03,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 04:51:03,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 04:51:03,893 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 04:51:03,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:51:02" (3/4) ... [2020-12-22 04:51:03,898 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 04:51:03,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-22 04:51:03,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 04:51:03,911 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:51:03,911 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:51:03,955 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-zilu/benchmark17_conjunctive.i-witness.graphml [2020-12-22 04:51:03,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 04:51:03,958 INFO L168 Benchmark]: Toolchain (without parser) took 2070.69 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 72.6 MB in the end (delta: 53.4 MB). Peak memory consumption was 54.9 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:03,958 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 121.8 MB in the end (delta: 95.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 04:51:03,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.55 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:03,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:03,961 INFO L168 Benchmark]: Boogie Preprocessor took 22.34 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 113.9 MB in the end (delta: 999.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:03,962 INFO L168 Benchmark]: RCFGBuilder took 317.08 ms. Allocated memory is still 151.0 MB. Free memory was 113.9 MB in the beginning and 102.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:03,963 INFO L168 Benchmark]: TraceAbstraction took 1358.80 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 75.3 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:03,963 INFO L168 Benchmark]: Witness Printer took 62.60 ms. Allocated memory is still 151.0 MB. Free memory was 75.3 MB in the beginning and 72.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:03,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory was 121.9 MB in the beginning and 121.8 MB in the end (delta: 95.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 266.55 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.34 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 113.9 MB in the end (delta: 999.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 317.08 ms. Allocated memory is still 151.0 MB. Free memory was 113.9 MB in the beginning and 102.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1358.80 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 75.3 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 8.0 GB. * Witness Printer took 62.60 ms. Allocated memory is still 151.0 MB. Free memory was 75.3 MB in the beginning and 72.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: i <= k - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 39 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 491 SizeOfPredicates, 4 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...