/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 -i ../../../trunk/examples/svcomp/recursive-simple/sum_2x3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 12:00:32,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 12:00:32,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 12:00:32,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-17 12:00:32,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 12:00:32,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 12:00:32,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 12:00:32,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 12:00:32,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 12:00:32,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 12:00:32,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 12:00:32,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 12:00:32,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 12:00:32,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 12:00:32,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 12:00:32,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 12:00:32,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 12:00:32,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 12:00:32,565 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 12:00:32,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 12:00:32,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 12:00:32,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 12:00:32,569 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 12:00:32,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 12:00:32,569 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 12:00:32,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 12:00:32,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 12:00:32,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 12:00:32,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 12:00:32,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 12:00:32,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 12:00:32,572 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 12:00:32,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 12:00:32,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 12:00:32,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 12:00:32,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 12:00:32,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 12:00:32,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 12:00:32,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 12:00:32,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:00:32,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 12:00:32,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 12:00:32,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 12:00:32,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 12:00:32,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 12:00:32,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 12:00:32,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 12:00:32,575 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 12:00:32,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 12:00:32,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 12:00:32,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 12:00:32,936 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 12:00:32,936 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 12:00:32,936 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-07-17 12:00:33,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfb7a504c/7ee0f5841de444f9b2b1c31726bcee4c/FLAG306d2ef60 [2020-07-17 12:00:33,403 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 12:00:33,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_2x3-2.c [2020-07-17 12:00:33,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfb7a504c/7ee0f5841de444f9b2b1c31726bcee4c/FLAG306d2ef60 [2020-07-17 12:00:33,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfb7a504c/7ee0f5841de444f9b2b1c31726bcee4c [2020-07-17 12:00:33,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 12:00:33,859 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 12:00:33,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 12:00:33,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 12:00:33,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 12:00:33,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:00:33" (1/1) ... [2020-07-17 12:00:33,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463b4a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:33, skipping insertion in model container [2020-07-17 12:00:33,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:00:33" (1/1) ... [2020-07-17 12:00:33,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 12:00:33,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 12:00:34,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:00:34,057 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 12:00:34,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:00:34,087 INFO L208 MainTranslator]: Completed translation [2020-07-17 12:00:34,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34 WrapperNode [2020-07-17 12:00:34,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 12:00:34,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 12:00:34,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 12:00:34,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 12:00:34,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34" (1/1) ... [2020-07-17 12:00:34,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34" (1/1) ... [2020-07-17 12:00:34,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34" (1/1) ... [2020-07-17 12:00:34,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34" (1/1) ... [2020-07-17 12:00:34,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34" (1/1) ... [2020-07-17 12:00:34,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34" (1/1) ... [2020-07-17 12:00:34,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34" (1/1) ... [2020-07-17 12:00:34,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 12:00:34,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 12:00:34,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 12:00:34,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 12:00:34,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:00:34,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 12:00:34,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 12:00:34,271 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-07-17 12:00:34,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 12:00:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 12:00:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-07-17 12:00:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 12:00:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 12:00:34,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 12:00:34,433 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 12:00:34,434 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 12:00:34,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:00:34 BoogieIcfgContainer [2020-07-17 12:00:34,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 12:00:34,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 12:00:34,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 12:00:34,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 12:00:34,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 12:00:33" (1/3) ... [2020-07-17 12:00:34,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f1fc51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:00:34, skipping insertion in model container [2020-07-17 12:00:34,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:00:34" (2/3) ... [2020-07-17 12:00:34,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f1fc51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:00:34, skipping insertion in model container [2020-07-17 12:00:34,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:00:34" (3/3) ... [2020-07-17 12:00:34,446 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_2x3-2.c [2020-07-17 12:00:34,456 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 12:00:34,464 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 12:00:34,476 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 12:00:34,500 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 12:00:34,500 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 12:00:34,500 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 12:00:34,500 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 12:00:34,500 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 12:00:34,501 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 12:00:34,501 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 12:00:34,501 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 12:00:34,519 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-07-17 12:00:34,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-17 12:00:34,526 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:00:34,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:00:34,527 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:00:34,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:00:34,533 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2020-07-17 12:00:34,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:00:34,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550997798] [2020-07-17 12:00:34,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:00:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:00:34,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550997798] [2020-07-17 12:00:34,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:00:34,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 12:00:34,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957873560] [2020-07-17 12:00:34,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:00:34,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:00:34,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:00:34,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:00:34,768 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-07-17 12:00:34,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:00:34,861 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-07-17 12:00:34,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 12:00:34,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-17 12:00:34,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:00:34,874 INFO L225 Difference]: With dead ends: 30 [2020-07-17 12:00:34,875 INFO L226 Difference]: Without dead ends: 18 [2020-07-17 12:00:34,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:00:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-17 12:00:34,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-17 12:00:34,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-17 12:00:34,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-07-17 12:00:34,926 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-07-17 12:00:34,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:00:34,927 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-07-17 12:00:34,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:00:34,927 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-07-17 12:00:34,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-17 12:00:34,929 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:00:34,929 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:00:34,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 12:00:34,930 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:00:34,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:00:34,931 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2020-07-17 12:00:34,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:00:34,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739822398] [2020-07-17 12:00:34,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:00:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 12:00:35,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739822398] [2020-07-17 12:00:35,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405107018] [2020-07-17 12:00:35,092 INFO L94 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 [2020-07-17 12:00:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:35,133 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 12:00:35,139 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:00:35,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 12:00:35,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:00:35,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-07-17 12:00:35,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786315703] [2020-07-17 12:00:35,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 12:00:35,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:00:35,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 12:00:35,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:00:35,209 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-07-17 12:00:35,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:00:35,273 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-07-17 12:00:35,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:00:35,274 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-07-17 12:00:35,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:00:35,275 INFO L225 Difference]: With dead ends: 25 [2020-07-17 12:00:35,275 INFO L226 Difference]: Without dead ends: 21 [2020-07-17 12:00:35,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:00:35,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-17 12:00:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-07-17 12:00:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-17 12:00:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-07-17 12:00:35,284 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-07-17 12:00:35,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:00:35,284 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-07-17 12:00:35,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 12:00:35,285 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-07-17 12:00:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-17 12:00:35,286 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:00:35,286 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:00:35,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-17 12:00:35,488 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:00:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:00:35,489 INFO L82 PathProgramCache]: Analyzing trace with hash 764931548, now seen corresponding path program 2 times [2020-07-17 12:00:35,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:00:35,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631060012] [2020-07-17 12:00:35,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:00:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:00:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 12:00:35,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631060012] [2020-07-17 12:00:35,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605566587] [2020-07-17 12:00:35,862 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:00:35,912 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-17 12:00:35,912 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-17 12:00:35,914 INFO L264 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-17 12:00:35,916 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:00:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-17 12:00:36,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:00:36,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2020-07-17 12:00:36,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974375809] [2020-07-17 12:00:36,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-07-17 12:00:36,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:00:36,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-07-17 12:00:36,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2020-07-17 12:00:36,174 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 22 states. [2020-07-17 12:00:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:00:36,537 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2020-07-17 12:00:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-17 12:00:36,538 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 25 [2020-07-17 12:00:36,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:00:36,539 INFO L225 Difference]: With dead ends: 24 [2020-07-17 12:00:36,539 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 12:00:36,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2020-07-17 12:00:36,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 12:00:36,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 12:00:36,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 12:00:36,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 12:00:36,542 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-07-17 12:00:36,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:00:36,542 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 12:00:36,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-07-17 12:00:36,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 12:00:36,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 12:00:36,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:00:36,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 12:00:36,786 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 12:00:36,786 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:00:36,786 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:00:36,786 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 12:00:36,786 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 12:00:36,787 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:00:36,787 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2020-07-17 12:00:36,787 INFO L264 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (and (= sum_~m |sum_#in~m|) (= sum_~n |sum_#in~n|) (<= 1 sum_~n)) [2020-07-17 12:00:36,787 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-07-17 12:00:36,787 INFO L268 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed. [2020-07-17 12:00:36,787 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2020-07-17 12:00:36,788 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2020-07-17 12:00:36,788 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-07-17 12:00:36,788 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2020-07-17 12:00:36,788 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 18) no Hoare annotation was computed. [2020-07-17 12:00:36,788 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-07-17 12:00:36,788 INFO L268 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-07-17 12:00:36,789 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (= 2 main_~a~0) [2020-07-17 12:00:36,789 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-07-17 12:00:36,789 INFO L268 CegarLoopResult]: For program point L15-2(lines 11 18) no Hoare annotation was computed. [2020-07-17 12:00:36,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 12:00:36 BoogieIcfgContainer [2020-07-17 12:00:36,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 12:00:36,798 INFO L168 Benchmark]: Toolchain (without parser) took 2939.71 ms. Allocated memory was 137.9 MB in the beginning and 231.7 MB in the end (delta: 93.8 MB). Free memory was 102.1 MB in the beginning and 111.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2020-07-17 12:00:36,799 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 12:00:36,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.00 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 92.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-17 12:00:36,801 INFO L168 Benchmark]: Boogie Preprocessor took 27.55 ms. Allocated memory is still 137.9 MB. Free memory was 92.8 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-07-17 12:00:36,802 INFO L168 Benchmark]: RCFGBuilder took 320.97 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 91.2 MB in the beginning and 167.2 MB in the end (delta: -76.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-17 12:00:36,803 INFO L168 Benchmark]: TraceAbstraction took 2356.72 ms. Allocated memory was 199.2 MB in the beginning and 231.7 MB in the end (delta: 32.5 MB). Free memory was 166.8 MB in the beginning and 111.5 MB in the end (delta: 55.4 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2020-07-17 12:00:36,807 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 228.00 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 92.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.55 ms. Allocated memory is still 137.9 MB. Free memory was 92.8 MB in the beginning and 91.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 320.97 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 91.2 MB in the beginning and 167.2 MB in the end (delta: -76.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2356.72 ms. Allocated memory was 199.2 MB in the beginning and 231.7 MB in the end (delta: 32.5 MB). Free memory was 166.8 MB in the beginning and 111.5 MB in the end (delta: 55.4 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 33 SDslu, 180 SDs, 0 SdLazy, 201 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=2, 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, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 18 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 8760 SizeOfPredicates, 11 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 21/36 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...