/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/fibo_2calls_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:04:05,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:04:05,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:04:05,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:04:05,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:04:05,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:04:05,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:04:05,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:04:05,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:04:05,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:04:05,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:04:05,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:04:05,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:04:05,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:04:05,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:04:05,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:04:05,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:04:05,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:04:05,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:04:05,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:04:05,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:04:05,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:04:05,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:04:05,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:04:05,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:04:05,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:04:05,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:04:05,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:04:05,452 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 [2020-07-07 11:04:05,488 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:04:05,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:04:05,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:04:05,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:04:05,493 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:04:05,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:04:05,494 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:04:05,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:04:05,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:04:05,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:04:05,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:04:05,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:04:05,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:04:05,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:04:05,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:04:05,499 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:04:05,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:04:05,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:04:05,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:04:05,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:04:05,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:04:05,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:04:05,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:04:05,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:04:05,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:04:05,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:04:05,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:04:05,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:04:05,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:04:05,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:04:05,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:04:05,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:04:05,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:04:05,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:04:05,881 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:04:05,882 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_2-2.c [2020-07-07 11:04:05,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5200c6ffb/c5515551aec14a6194c45c28147189f9/FLAG19621f3bc [2020-07-07 11:04:06,447 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:04:06,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_2-2.c [2020-07-07 11:04:06,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5200c6ffb/c5515551aec14a6194c45c28147189f9/FLAG19621f3bc [2020-07-07 11:04:06,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5200c6ffb/c5515551aec14a6194c45c28147189f9 [2020-07-07 11:04:06,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:04:06,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:04:06,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:04:06,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:04:06,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:04:06,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:04:06" (1/1) ... [2020-07-07 11:04:06,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3297cb6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:06, skipping insertion in model container [2020-07-07 11:04:06,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:04:06" (1/1) ... [2020-07-07 11:04:06,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:04:06,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:04:07,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:04:07,012 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:04:07,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:04:07,042 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:04:07,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07 WrapperNode [2020-07-07 11:04:07,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:04:07,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:04:07,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:04:07,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:04:07,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07" (1/1) ... [2020-07-07 11:04:07,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07" (1/1) ... [2020-07-07 11:04:07,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07" (1/1) ... [2020-07-07 11:04:07,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07" (1/1) ... [2020-07-07 11:04:07,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07" (1/1) ... [2020-07-07 11:04:07,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07" (1/1) ... [2020-07-07 11:04:07,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07" (1/1) ... [2020-07-07 11:04:07,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:04:07,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:04:07,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:04:07,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:04:07,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07" (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 [2020-07-07 11:04:07,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:04:07,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:04:07,246 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-07-07 11:04:07,246 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-07-07 11:04:07,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:04:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:04:07,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:04:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-07-07 11:04:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-07-07 11:04:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:04:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:04:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:04:07,454 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:04:07,455 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 11:04:07,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:04:07 BoogieIcfgContainer [2020-07-07 11:04:07,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:04:07,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:04:07,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:04:07,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:04:07,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:04:06" (1/3) ... [2020-07-07 11:04:07,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b11668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:04:07, skipping insertion in model container [2020-07-07 11:04:07,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:04:07" (2/3) ... [2020-07-07 11:04:07,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b11668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:04:07, skipping insertion in model container [2020-07-07 11:04:07,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:04:07" (3/3) ... [2020-07-07 11:04:07,467 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_2-2.c [2020-07-07 11:04:07,476 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:04:07,483 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:04:07,498 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:04:07,526 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:04:07,527 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:04:07,527 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:04:07,527 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:04:07,527 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:04:07,527 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:04:07,527 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:04:07,527 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:04:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-07 11:04:07,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-07 11:04:07,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:04:07,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:04:07,554 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:04:07,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:04:07,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-07-07 11:04:07,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:04:07,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429620226] [2020-07-07 11:04:07,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:04:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:07,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:04:07,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429620226] [2020-07-07 11:04:07,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:04:07,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:04:07,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826092049] [2020-07-07 11:04:07,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:04:07,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:04:07,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:04:07,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:04:07,965 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-07-07 11:04:08,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:04:08,120 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-07-07 11:04:08,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:04:08,124 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-07 11:04:08,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:04:08,135 INFO L225 Difference]: With dead ends: 44 [2020-07-07 11:04:08,135 INFO L226 Difference]: Without dead ends: 30 [2020-07-07 11:04:08,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:04:08,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-07 11:04:08,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-07 11:04:08,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-07 11:04:08,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-07 11:04:08,187 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-07-07 11:04:08,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:04:08,188 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-07 11:04:08,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:04:08,189 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-07 11:04:08,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-07 11:04:08,191 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:04:08,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:04:08,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:04:08,192 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:04:08,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:04:08,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-07-07 11:04:08,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:04:08,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375089445] [2020-07-07 11:04:08,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:04:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:04:08,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375089445] [2020-07-07 11:04:08,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:04:08,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:04:08,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122631948] [2020-07-07 11:04:08,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:04:08,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:04:08,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:04:08,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:04:08,306 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-07-07 11:04:08,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:04:08,394 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-07-07 11:04:08,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:04:08,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-07 11:04:08,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:04:08,397 INFO L225 Difference]: With dead ends: 36 [2020-07-07 11:04:08,397 INFO L226 Difference]: Without dead ends: 32 [2020-07-07 11:04:08,399 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 [2020-07-07 11:04:08,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-07 11:04:08,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-07-07 11:04:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-07 11:04:08,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-07 11:04:08,410 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-07-07 11:04:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:04:08,411 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-07 11:04:08,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:04:08,411 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-07 11:04:08,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 11:04:08,413 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:04:08,413 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:04:08,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:04:08,414 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:04:08,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:04:08,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-07-07 11:04:08,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:04:08,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779152322] [2020-07-07 11:04:08,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:04:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:04:08,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779152322] [2020-07-07 11:04:08,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098195674] [2020-07-07 11:04:08,602 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 [2020-07-07 11:04:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:08,646 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-07 11:04:08,653 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:04:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:04:08,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:04:08,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-07 11:04:08,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759625300] [2020-07-07 11:04:08,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 11:04:08,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:04:08,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 11:04:08,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:04:08,749 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 10 states. [2020-07-07 11:04:08,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:04:08,995 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-07-07 11:04:08,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 11:04:08,995 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-07 11:04:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:04:08,997 INFO L225 Difference]: With dead ends: 58 [2020-07-07 11:04:08,997 INFO L226 Difference]: Without dead ends: 34 [2020-07-07 11:04:08,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:04:08,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-07 11:04:09,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-07-07 11:04:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-07 11:04:09,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-07-07 11:04:09,009 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-07-07 11:04:09,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:04:09,009 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-07-07 11:04:09,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 11:04:09,010 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-07-07 11:04:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-07 11:04:09,012 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:04:09,012 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:04:09,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-07 11:04:09,228 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:04:09,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:04:09,229 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-07-07 11:04:09,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:04:09,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809170676] [2020-07-07 11:04:09,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:04:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-07 11:04:09,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809170676] [2020-07-07 11:04:09,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144604120] [2020-07-07 11:04:09,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) [2020-07-07 11:04:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,435 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-07 11:04:09,437 INFO L287 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:04:09,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-07 11:04:09,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:04:09,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-07-07 11:04:09,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899751159] [2020-07-07 11:04:09,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 11:04:09,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:04:09,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 11:04:09,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:04:09,512 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 10 states. [2020-07-07 11:04:09,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:04:09,565 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-07-07 11:04:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:04:09,566 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-07-07 11:04:09,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:04:09,568 INFO L225 Difference]: With dead ends: 46 [2020-07-07 11:04:09,568 INFO L226 Difference]: Without dead ends: 42 [2020-07-07 11:04:09,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:04:09,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-07 11:04:09,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2020-07-07 11:04:09,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-07 11:04:09,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-07-07 11:04:09,579 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 27 [2020-07-07 11:04:09,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:04:09,580 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-07-07 11:04:09,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 11:04:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-07-07 11:04:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-07 11:04:09,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:04:09,582 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:04:09,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:04:09,797 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:04:09,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:04:09,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1725129826, now seen corresponding path program 1 times [2020-07-07 11:04:09,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:04:09,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655314211] [2020-07-07 11:04:09,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:04:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-07 11:04:09,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655314211] [2020-07-07 11:04:09,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697960498] [2020-07-07 11:04:09,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:04:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:09,939 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-07 11:04:09,941 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:04:09,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:04:09,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:04:09,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 11 [2020-07-07 11:04:09,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726328932] [2020-07-07 11:04:09,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:04:09,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:04:09,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:04:09,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:04:09,988 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 7 states. [2020-07-07 11:04:10,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:04:10,096 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2020-07-07 11:04:10,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:04:10,097 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-07-07 11:04:10,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:04:10,099 INFO L225 Difference]: With dead ends: 44 [2020-07-07 11:04:10,099 INFO L226 Difference]: Without dead ends: 40 [2020-07-07 11:04:10,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:04:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-07 11:04:10,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2020-07-07 11:04:10,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-07 11:04:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-07-07 11:04:10,108 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 28 [2020-07-07 11:04:10,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:04:10,109 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-07-07 11:04:10,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:04:10,109 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-07-07 11:04:10,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-07 11:04:10,111 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:04:10,111 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:04:10,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:04:10,327 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:04:10,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:04:10,328 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-07-07 11:04:10,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:04:10,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848030051] [2020-07-07 11:04:10,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:04:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-07 11:04:10,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848030051] [2020-07-07 11:04:10,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675788322] [2020-07-07 11:04:10,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:04:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:04:10,474 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-07 11:04:10,477 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:04:10,563 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-07 11:04:10,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:04:10,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-07-07 11:04:10,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410861871] [2020-07-07 11:04:10,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 11:04:10,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:04:10,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 11:04:10,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-07-07 11:04:10,566 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 12 states. [2020-07-07 11:04:10,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:04:10,780 INFO L93 Difference]: Finished difference Result 69 states and 101 transitions. [2020-07-07 11:04:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:04:10,781 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 39 [2020-07-07 11:04:10,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:04:10,782 INFO L225 Difference]: With dead ends: 69 [2020-07-07 11:04:10,782 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:04:10,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:04:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:04:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:04:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:04:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:04:10,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-07-07 11:04:10,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:04:10,785 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:04:10,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 11:04:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:04:10,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:04:10,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:04:10,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:04:11,140 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-07 11:04:11,140 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:04:11,141 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:04:11,141 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 11:04:11,141 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:04:11,141 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:04:11,141 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2020-07-07 11:04:11,141 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-07-07 11:04:11,141 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 35 42) no Hoare annotation was computed. [2020-07-07 11:04:11,141 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 35 42) no Hoare annotation was computed. [2020-07-07 11:04:11,142 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-07-07 11:04:11,142 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-07-07 11:04:11,142 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= main_~x~0 2) (<= 2 main_~x~0)) [2020-07-07 11:04:11,142 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-07-07 11:04:11,142 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-07-07 11:04:11,142 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-07-07 11:04:11,143 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|)) [2020-07-07 11:04:11,143 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-07 11:04:11,143 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|)) [2020-07-07 11:04:11,144 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-07-07 11:04:11,144 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-07-07 11:04:11,144 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-07-07 11:04:11,144 INFO L268 CegarLoopResult]: For program point fibo2FINAL(lines 17 25) no Hoare annotation was computed. [2020-07-07 11:04:11,144 INFO L268 CegarLoopResult]: For program point fibo2EXIT(lines 17 25) no Hoare annotation was computed. [2020-07-07 11:04:11,144 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-07-07 11:04:11,145 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|)) [2020-07-07 11:04:11,145 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-07-07 11:04:11,146 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (and (<= 3 |fibo1_#in~n|) .cse0) (and (<= 1 |fibo1_#t~ret0|) (< 1 fibo1_~n) (<= |fibo1_#t~ret0| 1) .cse0))) [2020-07-07 11:04:11,146 INFO L268 CegarLoopResult]: For program point fibo1FINAL(lines 7 15) no Hoare annotation was computed. [2020-07-07 11:04:11,146 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-07-07 11:04:11,146 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-07-07 11:04:11,147 INFO L268 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-07-07 11:04:11,147 INFO L268 CegarLoopResult]: For program point fibo1EXIT(lines 7 15) no Hoare annotation was computed. [2020-07-07 11:04:11,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:04:11 BoogieIcfgContainer [2020-07-07 11:04:11,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:04:11,159 INFO L168 Benchmark]: Toolchain (without parser) took 4374.82 ms. Allocated memory was 144.2 MB in the beginning and 249.0 MB in the end (delta: 104.9 MB). Free memory was 101.9 MB in the beginning and 183.9 MB in the end (delta: -82.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-07-07 11:04:11,161 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 11:04:11,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.01 ms. Allocated memory is still 144.2 MB. Free memory was 101.7 MB in the beginning and 92.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:04:11,162 INFO L168 Benchmark]: Boogie Preprocessor took 129.69 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 92.0 MB in the beginning and 181.1 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-07 11:04:11,163 INFO L168 Benchmark]: RCFGBuilder took 285.88 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 167.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:04:11,164 INFO L168 Benchmark]: TraceAbstraction took 3695.04 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 167.0 MB in the beginning and 183.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-07-07 11:04:11,168 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 259.01 ms. Allocated memory is still 144.2 MB. Free memory was 101.7 MB in the beginning and 92.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.69 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 92.0 MB in the beginning and 181.1 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 285.88 ms. Allocated memory is still 202.4 MB. Free memory was 181.1 MB in the beginning and 167.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3695.04 ms. Allocated memory was 202.4 MB in the beginning and 249.0 MB in the end (delta: 46.7 MB). Free memory was 167.0 MB in the beginning and 183.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: 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 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 168 SDtfs, 95 SDslu, 734 SDs, 0 SdLazy, 450 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 161 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=4, 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, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 50 PreInvPairs, 59 NumberOfFragments, 55 HoareAnnotationTreeSize, 50 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 267 NumberOfCodeBlocks, 267 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 15383 SizeOfPredicates, 10 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 36/58 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...