/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:35:36,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:35:36,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:35:36,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:35:36,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:35:36,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:35:36,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:35:36,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:35:36,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:35:36,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:35:36,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:35:36,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:35:36,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:35:36,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:35:36,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:35:36,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:35:36,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:35:36,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:35:36,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:35:36,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:35:36,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:35:36,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:35:36,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:35:36,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:35:36,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:35:36,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:35:36,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:35:36,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:35:36,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:35:36,794 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:35:36,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:35:36,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:35:36,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:35:36,797 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:35:36,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:35:36,797 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:35:36,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:35:36,797 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:35:36,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:35:36,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:35:36,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:35:36,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:35:36,799 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:35:36,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:35:36,800 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:35:36,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:35:36,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:35:36,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:35:36,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:35:36,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:35:36,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:35:36,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:35:36,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:35:36,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:35:36,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:35:36,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:35:36,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:35:36,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:35:37,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:35:37,117 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:35:37,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:35:37,122 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:35:37,123 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:35:37,124 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2019-11-07 00:35:37,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb3009404/130c97668e044f109a32f5f1a0d8c975/FLAG013c4d039 [2019-11-07 00:35:37,656 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:35:37,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c [2019-11-07 00:35:37,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb3009404/130c97668e044f109a32f5f1a0d8c975/FLAG013c4d039 [2019-11-07 00:35:38,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb3009404/130c97668e044f109a32f5f1a0d8c975 [2019-11-07 00:35:38,107 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:35:38,109 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:35:38,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:38,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:35:38,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:35:38,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:38" (1/1) ... [2019-11-07 00:35:38,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f26af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38, skipping insertion in model container [2019-11-07 00:35:38,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:38" (1/1) ... [2019-11-07 00:35:38,155 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:35:38,226 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:35:38,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:38,647 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:35:38,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:38,790 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:35:38,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38 WrapperNode [2019-11-07 00:35:38,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:38,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:35:38,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:35:38,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:35:38,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38" (1/1) ... [2019-11-07 00:35:38,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38" (1/1) ... [2019-11-07 00:35:38,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38" (1/1) ... [2019-11-07 00:35:38,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38" (1/1) ... [2019-11-07 00:35:38,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38" (1/1) ... [2019-11-07 00:35:38,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38" (1/1) ... [2019-11-07 00:35:38,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38" (1/1) ... [2019-11-07 00:35:38,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:35:38,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:35:38,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:35:38,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:35:38,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:35:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:35:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:35:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:35:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2019-11-07 00:35:38,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:35:38,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2019-11-07 00:35:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:35:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:35:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2019-11-07 00:35:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2019-11-07 00:35:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:35:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-07 00:35:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-07 00:35:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:35:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:35:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:35:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:35:39,408 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:35:39,408 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-07 00:35:39,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:39 BoogieIcfgContainer [2019-11-07 00:35:39,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:35:39,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:35:39,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:35:39,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:35:39,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:35:38" (1/3) ... [2019-11-07 00:35:39,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e06250e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:39, skipping insertion in model container [2019-11-07 00:35:39,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:38" (2/3) ... [2019-11-07 00:35:39,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e06250e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:39, skipping insertion in model container [2019-11-07 00:35:39,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:39" (3/3) ... [2019-11-07 00:35:39,417 INFO L109 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2019-11-07 00:35:39,432 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:35:39,443 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:35:39,454 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:35:39,476 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:35:39,476 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:35:39,476 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:35:39,476 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:35:39,477 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:35:39,477 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:35:39,477 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:35:39,477 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:35:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2019-11-07 00:35:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-07 00:35:39,499 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:39,500 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:39,502 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:39,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:39,507 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2019-11-07 00:35:39,516 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:39,516 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462618566] [2019-11-07 00:35:39,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:39,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:39,717 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462618566] [2019-11-07 00:35:39,718 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:35:39,718 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:35:39,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526157328] [2019-11-07 00:35:39,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:35:39,729 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:39,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:35:39,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:35:39,748 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2019-11-07 00:35:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:39,801 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2019-11-07 00:35:39,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:35:39,803 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-07 00:35:39,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:39,816 INFO L225 Difference]: With dead ends: 122 [2019-11-07 00:35:39,816 INFO L226 Difference]: Without dead ends: 20 [2019-11-07 00:35:39,824 INFO L630 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 [2019-11-07 00:35:39,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-07 00:35:39,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-07 00:35:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-07 00:35:39,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-11-07 00:35:39,881 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2019-11-07 00:35:39,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:39,882 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-11-07 00:35:39,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:35:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-11-07 00:35:39,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-07 00:35:39,885 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:39,885 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:39,885 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:39,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:39,886 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2019-11-07 00:35:39,886 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:39,886 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975896245] [2019-11-07 00:35:39,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:40,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:40,078 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975896245] [2019-11-07 00:35:40,078 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:35:40,078 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:35:40,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24978330] [2019-11-07 00:35:40,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:35:40,081 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:40,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:35:40,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:35:40,082 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 6 states. [2019-11-07 00:35:40,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:40,175 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-11-07 00:35:40,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 00:35:40,176 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-07 00:35:40,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:40,176 INFO L225 Difference]: With dead ends: 21 [2019-11-07 00:35:40,177 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:35:40,178 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:35:40,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:35:40,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:35:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:35:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:35:40,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-07 00:35:40,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:40,179 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:35:40,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:35:40,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:35:40,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:35:40,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:35:40,265 INFO L446 ceAbstractionStarter]: At program point L118(line 118) the Hoare annotation is: true [2019-11-07 00:35:40,266 INFO L443 ceAbstractionStarter]: For program point L118-1(line 118) no Hoare annotation was computed. [2019-11-07 00:35:40,266 INFO L443 ceAbstractionStarter]: For program point L127-2(lines 127 133) no Hoare annotation was computed. [2019-11-07 00:35:40,266 INFO L446 ceAbstractionStarter]: At program point L127-3(lines 127 133) the Hoare annotation is: true [2019-11-07 00:35:40,266 INFO L443 ceAbstractionStarter]: For program point L119-2(lines 119 126) no Hoare annotation was computed. [2019-11-07 00:35:40,266 INFO L446 ceAbstractionStarter]: At program point L119-3(lines 119 126) the Hoare annotation is: true [2019-11-07 00:35:40,267 INFO L443 ceAbstractionStarter]: For program point L119-4(lines 119 126) no Hoare annotation was computed. [2019-11-07 00:35:40,267 INFO L443 ceAbstractionStarter]: For program point L144-2(lines 144 150) no Hoare annotation was computed. [2019-11-07 00:35:40,267 INFO L446 ceAbstractionStarter]: At program point L144-3(lines 144 150) the Hoare annotation is: true [2019-11-07 00:35:40,267 INFO L443 ceAbstractionStarter]: For program point L144-4(lines 144 150) no Hoare annotation was computed. [2019-11-07 00:35:40,267 INFO L443 ceAbstractionStarter]: For program point L136-2(lines 136 142) no Hoare annotation was computed. [2019-11-07 00:35:40,268 INFO L446 ceAbstractionStarter]: At program point L136-3(lines 136 142) the Hoare annotation is: true [2019-11-07 00:35:40,268 INFO L443 ceAbstractionStarter]: For program point L136-4(lines 136 142) no Hoare annotation was computed. [2019-11-07 00:35:40,268 INFO L443 ceAbstractionStarter]: For program point ludcmpEXIT(lines 109 153) no Hoare annotation was computed. [2019-11-07 00:35:40,268 INFO L446 ceAbstractionStarter]: At program point ludcmpENTRY(lines 109 153) the Hoare annotation is: true [2019-11-07 00:35:40,268 INFO L443 ceAbstractionStarter]: For program point ludcmpFINAL(lines 109 153) no Hoare annotation was computed. [2019-11-07 00:35:40,268 INFO L443 ceAbstractionStarter]: For program point L130-2(lines 130 131) no Hoare annotation was computed. [2019-11-07 00:35:40,269 INFO L446 ceAbstractionStarter]: At program point L130-3(lines 130 131) the Hoare annotation is: true [2019-11-07 00:35:40,270 INFO L443 ceAbstractionStarter]: For program point L130-4(lines 130 131) no Hoare annotation was computed. [2019-11-07 00:35:40,271 INFO L443 ceAbstractionStarter]: For program point L122(lines 122 124) no Hoare annotation was computed. [2019-11-07 00:35:40,272 INFO L443 ceAbstractionStarter]: For program point L122-1(lines 122 124) no Hoare annotation was computed. [2019-11-07 00:35:40,272 INFO L443 ceAbstractionStarter]: For program point L147-2(lines 147 148) no Hoare annotation was computed. [2019-11-07 00:35:40,272 INFO L446 ceAbstractionStarter]: At program point L147-3(lines 147 148) the Hoare annotation is: true [2019-11-07 00:35:40,272 INFO L443 ceAbstractionStarter]: For program point L147-4(lines 147 148) no Hoare annotation was computed. [2019-11-07 00:35:40,272 INFO L443 ceAbstractionStarter]: For program point L139-2(lines 139 140) no Hoare annotation was computed. [2019-11-07 00:35:40,273 INFO L446 ceAbstractionStarter]: At program point L139-3(lines 139 140) the Hoare annotation is: true [2019-11-07 00:35:40,273 INFO L443 ceAbstractionStarter]: For program point L139-4(lines 139 140) no Hoare annotation was computed. [2019-11-07 00:35:40,273 INFO L443 ceAbstractionStarter]: For program point L123-2(lines 123 124) no Hoare annotation was computed. [2019-11-07 00:35:40,273 INFO L446 ceAbstractionStarter]: At program point L123-3(lines 123 124) the Hoare annotation is: true [2019-11-07 00:35:40,273 INFO L443 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2019-11-07 00:35:40,274 INFO L443 ceAbstractionStarter]: For program point L116-2(lines 116 134) no Hoare annotation was computed. [2019-11-07 00:35:40,276 INFO L446 ceAbstractionStarter]: At program point L116-3(lines 116 134) the Hoare annotation is: true [2019-11-07 00:35:40,276 INFO L443 ceAbstractionStarter]: For program point L116-4(lines 116 134) no Hoare annotation was computed. [2019-11-07 00:35:40,276 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:35:40,277 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:35:40,277 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:35:40,277 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 79) no Hoare annotation was computed. [2019-11-07 00:35:40,277 INFO L443 ceAbstractionStarter]: For program point L78-2(lines 78 79) no Hoare annotation was computed. [2019-11-07 00:35:40,277 INFO L443 ceAbstractionStarter]: For program point fabsEXIT(lines 74 81) no Hoare annotation was computed. [2019-11-07 00:35:40,278 INFO L446 ceAbstractionStarter]: At program point fabsENTRY(lines 74 81) the Hoare annotation is: true [2019-11-07 00:35:40,278 INFO L443 ceAbstractionStarter]: For program point fabsFINAL(lines 74 81) no Hoare annotation was computed. [2019-11-07 00:35:40,278 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:35:40,278 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:35:40,278 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:35:40,278 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:35:40,279 INFO L443 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-07 00:35:40,279 INFO L443 ceAbstractionStarter]: For program point L97-2(line 97) no Hoare annotation was computed. [2019-11-07 00:35:40,279 INFO L443 ceAbstractionStarter]: For program point L91-2(lines 91 102) no Hoare annotation was computed. [2019-11-07 00:35:40,279 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 83 107) no Hoare annotation was computed. [2019-11-07 00:35:40,279 INFO L439 ceAbstractionStarter]: At program point L91-3(lines 91 102) the Hoare annotation is: (<= main_~n~0 5) [2019-11-07 00:35:40,280 INFO L446 ceAbstractionStarter]: At program point L91-4(lines 91 102) the Hoare annotation is: true [2019-11-07 00:35:40,280 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 83 107) no Hoare annotation was computed. [2019-11-07 00:35:40,280 INFO L443 ceAbstractionStarter]: For program point L104(line 104) no Hoare annotation was computed. [2019-11-07 00:35:40,280 INFO L443 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2019-11-07 00:35:40,280 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 83 107) the Hoare annotation is: true [2019-11-07 00:35:40,281 INFO L443 ceAbstractionStarter]: For program point L94-2(lines 94 99) no Hoare annotation was computed. [2019-11-07 00:35:40,281 INFO L439 ceAbstractionStarter]: At program point L94-3(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= main_~i~0 5)) [2019-11-07 00:35:40,282 INFO L439 ceAbstractionStarter]: At program point L94-4(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= main_~i~0 5)) [2019-11-07 00:35:40,282 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-11-07 00:35:40,282 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-07 00:35:40,282 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-11-07 00:35:40,282 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-07 00:35:40,283 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-07 00:35:40,283 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-11-07 00:35:40,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:35:40 BoogieIcfgContainer [2019-11-07 00:35:40,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:35:40,309 INFO L168 Benchmark]: Toolchain (without parser) took 2199.06 ms. Allocated memory was 136.8 MB in the beginning and 198.7 MB in the end (delta: 61.9 MB). Free memory was 101.3 MB in the beginning and 101.0 MB in the end (delta: 287.9 kB). Peak memory consumption was 62.2 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:40,310 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:35:40,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.10 ms. Allocated memory was 136.8 MB in the beginning and 198.7 MB in the end (delta: 61.9 MB). Free memory was 100.8 MB in the beginning and 175.5 MB in the end (delta: -74.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:40,314 INFO L168 Benchmark]: Boogie Preprocessor took 59.09 ms. Allocated memory is still 198.7 MB. Free memory was 175.5 MB in the beginning and 172.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:40,315 INFO L168 Benchmark]: RCFGBuilder took 558.98 ms. Allocated memory is still 198.7 MB. Free memory was 172.8 MB in the beginning and 146.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:40,317 INFO L168 Benchmark]: TraceAbstraction took 894.73 ms. Allocated memory is still 198.7 MB. Free memory was 145.5 MB in the beginning and 101.0 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:40,326 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 674.10 ms. Allocated memory was 136.8 MB in the beginning and 198.7 MB in the end (delta: 61.9 MB). Free memory was 100.8 MB in the beginning and 175.5 MB in the end (delta: -74.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.09 ms. Allocated memory is still 198.7 MB. Free memory was 175.5 MB in the beginning and 172.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 558.98 ms. Allocated memory is still 198.7 MB. Free memory was 172.8 MB in the beginning and 146.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 894.73 ms. Allocated memory is still 198.7 MB. Free memory was 145.5 MB in the beginning and 101.0 MB in the end (delta: 44.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: n <= 5 && i <= 5 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: n <= 5 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 89 SDtfs, 20 SDslu, 31 SDs, 0 SdLazy, 31 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 34 PreInvPairs, 49 NumberOfFragments, 35 HoareAnnotationTreeSize, 34 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...