/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-invariants/linear-inequality-inv-b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 07:13:59,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 07:13:59,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 07:13:59,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 07:13:59,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 07:13:59,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 07:13:59,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 07:13:59,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 07:13:59,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 07:13:59,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 07:13:59,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 07:13:59,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 07:13:59,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 07:13:59,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 07:13:59,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 07:13:59,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 07:13:59,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 07:13:59,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 07:13:59,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 07:13:59,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 07:13:59,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 07:13:59,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 07:13:59,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 07:13:59,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 07:13:59,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 07:13:59,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 07:13:59,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 07:13:59,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 07:13:59,654 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 07:13:59,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 07:13:59,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 07:13:59,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 07:13:59,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 07:13:59,689 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 07:13:59,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 07:13:59,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 07:13:59,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 07:13:59,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 07:13:59,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 07:13:59,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 07:13:59,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 07:13:59,691 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 07:13:59,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 07:13:59,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 07:13:59,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 07:13:59,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 07:13:59,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 07:13:59,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 07:13:59,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 07:13:59,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 07:13:59,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 07:13:59,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 07:13:59,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 07:13:59,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 07:13:59,695 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 07:14:00,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 07:14:00,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 07:14:00,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 07:14:00,179 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 07:14:00,180 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 07:14:00,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2020-12-23 07:14:00,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/20e7f0a79/3fba63281e404be0880785bffba120d5/FLAGb61a99a5d [2020-12-23 07:14:00,958 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 07:14:00,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2020-12-23 07:14:00,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/20e7f0a79/3fba63281e404be0880785bffba120d5/FLAGb61a99a5d [2020-12-23 07:14:01,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/20e7f0a79/3fba63281e404be0880785bffba120d5 [2020-12-23 07:14:01,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 07:14:01,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 07:14:01,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 07:14:01,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 07:14:01,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 07:14:01,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c924c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01, skipping insertion in model container [2020-12-23 07:14:01,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 07:14:01,368 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~v~0,] [2020-12-23 07:14:01,620 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570] [2020-12-23 07:14:01,627 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626] [2020-12-23 07:14:01,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:14:01,649 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~v~0,] [2020-12-23 07:14:01,671 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570] [2020-12-23 07:14:01,673 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626] [2020-12-23 07:14:01,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 07:14:01,700 INFO L208 MainTranslator]: Completed translation [2020-12-23 07:14:01,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01 WrapperNode [2020-12-23 07:14:01,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 07:14:01,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 07:14:01,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 07:14:01,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 07:14:01,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 07:14:01,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 07:14:01,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 07:14:01,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 07:14:01,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... [2020-12-23 07:14:01,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 07:14:01,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 07:14:01,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 07:14:01,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 07:14:01,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 07:14:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 07:14:01,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 07:14:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 07:14:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 07:14:02,250 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 07:14:02,251 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-23 07:14:02,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:14:02 BoogieIcfgContainer [2020-12-23 07:14:02,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 07:14:02,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 07:14:02,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 07:14:02,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 07:14:02,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:14:01" (1/3) ... [2020-12-23 07:14:02,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fdb0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:14:02, skipping insertion in model container [2020-12-23 07:14:02,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:14:01" (2/3) ... [2020-12-23 07:14:02,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fdb0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:14:02, skipping insertion in model container [2020-12-23 07:14:02,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:14:02" (3/3) ... [2020-12-23 07:14:02,278 INFO L111 eAbstractionObserver]: Analyzing ICFG linear-inequality-inv-b.c [2020-12-23 07:14:02,294 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 07:14:02,306 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-23 07:14:02,332 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-23 07:14:02,435 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 07:14:02,436 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 07:14:02,436 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 07:14:02,436 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 07:14:02,436 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 07:14:02,436 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 07:14:02,436 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 07:14:02,437 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 07:14:02,462 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-23 07:14:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 07:14:02,468 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:14:02,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 07:14:02,470 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:14:02,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:14:02,477 INFO L82 PathProgramCache]: Analyzing trace with hash 889577263, now seen corresponding path program 1 times [2020-12-23 07:14:02,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:14:02,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504606081] [2020-12-23 07:14:02,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:14:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:14:02,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:14:02,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504606081] [2020-12-23 07:14:02,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:14:02,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 07:14:02,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026287594] [2020-12-23 07:14:02,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 07:14:02,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:14:02,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 07:14:02,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 07:14:02,684 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-12-23 07:14:02,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:14:02,703 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2020-12-23 07:14:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 07:14:02,705 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-23 07:14:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:14:02,715 INFO L225 Difference]: With dead ends: 20 [2020-12-23 07:14:02,716 INFO L226 Difference]: Without dead ends: 7 [2020-12-23 07:14:02,719 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 [2020-12-23 07:14:02,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-23 07:14:02,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-23 07:14:02,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-23 07:14:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-12-23 07:14:02,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2020-12-23 07:14:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:14:02,759 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-12-23 07:14:02,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 07:14:02,759 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-12-23 07:14:02,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 07:14:02,759 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:14:02,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 07:14:02,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 07:14:02,760 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:14:02,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:14:02,761 INFO L82 PathProgramCache]: Analyzing trace with hash 889573419, now seen corresponding path program 1 times [2020-12-23 07:14:02,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:14:02,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385559313] [2020-12-23 07:14:02,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:14:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:14:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:14:02,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385559313] [2020-12-23 07:14:02,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 07:14:02,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 07:14:02,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241542300] [2020-12-23 07:14:02,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 07:14:02,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:14:02,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 07:14:02,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 07:14:02,875 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2020-12-23 07:14:02,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:14:02,890 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-12-23 07:14:02,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 07:14:02,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-23 07:14:02,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:14:02,892 INFO L225 Difference]: With dead ends: 11 [2020-12-23 07:14:02,892 INFO L226 Difference]: Without dead ends: 8 [2020-12-23 07:14:02,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 07:14:02,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-23 07:14:02,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-23 07:14:02,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-23 07:14:02,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-23 07:14:02,897 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-12-23 07:14:02,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:14:02,897 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-23 07:14:02,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 07:14:02,897 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-23 07:14:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 07:14:02,898 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:14:02,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 07:14:02,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 07:14:02,898 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:14:02,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:14:02,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1807024099, now seen corresponding path program 1 times [2020-12-23 07:14:02,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:14:02,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394964815] [2020-12-23 07:14:02,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:14:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:14:03,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:14:03,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394964815] [2020-12-23 07:14:03,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166640922] [2020-12-23 07:14:03,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 07:14:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 07:14:03,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 07:14:03,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 07:14:03,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 07:14:03,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 07:14:03,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-23 07:14:03,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853634842] [2020-12-23 07:14:03,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 07:14:03,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 07:14:03,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 07:14:03,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 07:14:03,141 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2020-12-23 07:14:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 07:14:03,173 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-12-23 07:14:03,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 07:14:03,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-23 07:14:03,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 07:14:03,174 INFO L225 Difference]: With dead ends: 12 [2020-12-23 07:14:03,174 INFO L226 Difference]: Without dead ends: 9 [2020-12-23 07:14:03,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-23 07:14:03,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-23 07:14:03,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-23 07:14:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-23 07:14:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-23 07:14:03,179 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-12-23 07:14:03,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 07:14:03,179 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-23 07:14:03,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 07:14:03,179 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-23 07:14:03,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 07:14:03,180 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 07:14:03,180 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-12-23 07:14:03,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 07:14:03,394 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 07:14:03,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 07:14:03,396 INFO L82 PathProgramCache]: Analyzing trace with hash 183224107, now seen corresponding path program 2 times [2020-12-23 07:14:03,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 07:14:03,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326545068] [2020-12-23 07:14:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 07:14:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 07:14:03,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 07:14:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 07:14:03,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 07:14:03,565 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 07:14:03,565 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 07:14:03,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 07:14:03,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 07:14:03 BoogieIcfgContainer [2020-12-23 07:14:03,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 07:14:03,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 07:14:03,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 07:14:03,594 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 07:14:03,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:14:02" (3/4) ... [2020-12-23 07:14:03,597 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 07:14:03,648 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-invariants/linear-inequality-inv-b.c-witness.graphml [2020-12-23 07:14:03,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 07:14:03,651 INFO L168 Benchmark]: Toolchain (without parser) took 2322.10 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 88.6 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.3 MB. Max. memory is 8.0 GB. [2020-12-23 07:14:03,651 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 07:14:03,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.07 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 117.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 07:14:03,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.47 ms. Allocated memory is still 151.0 MB. Free memory was 117.6 MB in the beginning and 116.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:14:03,654 INFO L168 Benchmark]: Boogie Preprocessor took 56.02 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 115.2 MB in the end (delta: 907.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 07:14:03,654 INFO L168 Benchmark]: RCFGBuilder took 441.88 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 103.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-23 07:14:03,655 INFO L168 Benchmark]: TraceAbstraction took 1336.06 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 90.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. [2020-12-23 07:14:03,656 INFO L168 Benchmark]: Witness Printer took 54.32 ms. Allocated memory is still 151.0 MB. Free memory was 90.7 MB in the beginning and 88.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 07:14:03,660 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 371.07 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 117.6 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 50.47 ms. Allocated memory is still 151.0 MB. Free memory was 117.6 MB in the beginning and 116.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 56.02 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 115.2 MB in the end (delta: 907.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 441.88 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 103.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1336.06 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 90.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. * Witness Printer took 54.32 ms. Allocated memory is still 151.0 MB. Free memory was 90.7 MB in the beginning and 88.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5] unsigned char n = __VERIFIER_nondet_uchar(); [L6] COND FALSE !(n == 0) [L9] unsigned char v = 0; [L10] unsigned char s = 0; [L11] unsigned int i = 0; [L12] COND TRUE i < n [L13] v = __VERIFIER_nondet_uchar() [L14] s += v [L15] ++i [L12] COND TRUE i < n [L13] v = __VERIFIER_nondet_uchar() [L14] s += v [L15] ++i [L12] COND FALSE !(i < n) [L17] COND TRUE s < v [L18] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 12 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 412 SizeOfPredicates, 2 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 5 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 incorrect! Received shutdown request...