/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 0.1.25-267fbe0 [2020-07-17 11:48:40,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:48:40,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:48:40,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:48:40,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:48:40,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:48:40,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:48:40,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:48:40,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:48:40,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:48:40,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:48:40,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:48:40,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:48:40,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:48:40,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:48:40,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:48:40,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:48:40,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:48:40,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:48:40,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:48:40,546 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:48:40,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:48:40,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:48:40,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:48:40,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:48:40,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:48:40,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:48:40,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:48:40,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:48:40,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:48:40,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:48:40,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:48:40,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:48:40,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:48:40,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:48:40,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:48:40,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:48:40,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:48:40,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:48:40,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:48:40,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:48:40,568 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 11:48:40,601 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:48:40,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:48:40,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:48:40,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:48:40,604 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:48:40,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:48:40,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:48:40,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:48:40,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:48:40,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:48:40,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:48:40,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:48:40,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:48:40,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:48:40,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:48:40,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:48:40,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:48:40,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:48:40,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:48:40,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:48:40,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:48:40,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:48:40,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:48:40,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:48:40,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:48:40,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:48:40,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:48:40,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:48:40,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:48:40,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:48:40,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:48:40,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:48:40,899 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:48:40,901 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:48:40,901 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:48:40,902 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_2-2.c [2020-07-17 11:48:40,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abac8fb3d/e3742dde34244c55b7a1cdbb7da22d98/FLAGd2be6ccda [2020-07-17 11:48:41,438 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:48:41,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_2-2.c [2020-07-17 11:48:41,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abac8fb3d/e3742dde34244c55b7a1cdbb7da22d98/FLAGd2be6ccda [2020-07-17 11:48:41,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abac8fb3d/e3742dde34244c55b7a1cdbb7da22d98 [2020-07-17 11:48:41,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:48:41,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:48:41,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:48:41,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:48:41,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:48:41,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:48:41" (1/1) ... [2020-07-17 11:48:41,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1508b7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:41, skipping insertion in model container [2020-07-17 11:48:41,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:48:41" (1/1) ... [2020-07-17 11:48:41,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:48:41,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:48:42,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:48:42,034 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:48:42,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:48:42,067 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:48:42,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42 WrapperNode [2020-07-17 11:48:42,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:48:42,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:48:42,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:48:42,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:48:42,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42" (1/1) ... [2020-07-17 11:48:42,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42" (1/1) ... [2020-07-17 11:48:42,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42" (1/1) ... [2020-07-17 11:48:42,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42" (1/1) ... [2020-07-17 11:48:42,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42" (1/1) ... [2020-07-17 11:48:42,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42" (1/1) ... [2020-07-17 11:48:42,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42" (1/1) ... [2020-07-17 11:48:42,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:48:42,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:48:42,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:48:42,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:48:42,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42" (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 11:48:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:48:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:48:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-07-17 11:48:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-07-17 11:48:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:48:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:48:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:48:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-07-17 11:48:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-07-17 11:48:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:48:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:48:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:48:42,464 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:48:42,464 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 11:48:42,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:48:42 BoogieIcfgContainer [2020-07-17 11:48:42,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:48:42,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:48:42,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:48:42,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:48:42,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:48:41" (1/3) ... [2020-07-17 11:48:42,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e393d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:48:42, skipping insertion in model container [2020-07-17 11:48:42,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:48:42" (2/3) ... [2020-07-17 11:48:42,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e393d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:48:42, skipping insertion in model container [2020-07-17 11:48:42,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:48:42" (3/3) ... [2020-07-17 11:48:42,504 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_2-2.c [2020-07-17 11:48:42,519 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:48:42,527 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:48:42,557 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:48:42,589 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:48:42,589 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:48:42,589 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:48:42,589 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:48:42,589 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:48:42,590 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:48:42,590 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:48:42,590 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:48:42,605 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-17 11:48:42,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-17 11:48:42,610 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:48:42,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:48:42,612 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:48:42,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:48:42,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-07-17 11:48:42,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:48:42,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273936369] [2020-07-17 11:48:42,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:48:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:42,807 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 11:48:42,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273936369] [2020-07-17 11:48:42,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:48:42,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 11:48:42,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162050617] [2020-07-17 11:48:42,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 11:48:42,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:48:42,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 11:48:42,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:48:42,831 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-07-17 11:48:42,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:48:42,944 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-07-17 11:48:42,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:48:42,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-17 11:48:42,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:48:42,958 INFO L225 Difference]: With dead ends: 44 [2020-07-17 11:48:42,958 INFO L226 Difference]: Without dead ends: 30 [2020-07-17 11:48:42,962 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 11:48:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-17 11:48:43,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-17 11:48:43,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-17 11:48:43,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-17 11:48:43,013 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-07-17 11:48:43,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:48:43,014 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-17 11:48:43,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 11:48:43,014 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-17 11:48:43,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-17 11:48:43,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:48:43,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:48:43,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:48:43,017 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:48:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:48:43,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-07-17 11:48:43,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:48:43,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972510436] [2020-07-17 11:48:43,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:48:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:43,079 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 11:48:43,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972510436] [2020-07-17 11:48:43,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:48:43,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 11:48:43,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755917039] [2020-07-17 11:48:43,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 11:48:43,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:48:43,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 11:48:43,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:48:43,087 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-07-17 11:48:43,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:48:43,165 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-07-17 11:48:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:48:43,167 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-17 11:48:43,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:48:43,169 INFO L225 Difference]: With dead ends: 36 [2020-07-17 11:48:43,169 INFO L226 Difference]: Without dead ends: 32 [2020-07-17 11:48:43,172 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 11:48:43,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-17 11:48:43,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-07-17 11:48:43,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-17 11:48:43,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-07-17 11:48:43,192 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-07-17 11:48:43,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:48:43,193 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-07-17 11:48:43,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 11:48:43,193 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-07-17 11:48:43,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 11:48:43,196 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:48:43,197 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] [2020-07-17 11:48:43,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:48:43,197 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:48:43,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:48:43,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-07-17 11:48:43,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:48:43,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142210319] [2020-07-17 11:48:43,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:48:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:43,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 11:48:43,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142210319] [2020-07-17 11:48:43,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642986571] [2020-07-17 11:48:43,351 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 11:48:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:43,395 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 11:48:43,402 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:48:43,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 11:48:43,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 11:48:43,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-17 11:48:43,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695023438] [2020-07-17 11:48:43,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 11:48:43,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:48:43,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 11:48:43,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:48:43,495 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 10 states. [2020-07-17 11:48:43,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:48:43,722 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-07-17 11:48:43,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 11:48:43,723 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-17 11:48:43,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:48:43,724 INFO L225 Difference]: With dead ends: 58 [2020-07-17 11:48:43,724 INFO L226 Difference]: Without dead ends: 34 [2020-07-17 11:48:43,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-07-17 11:48:43,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-17 11:48:43,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-07-17 11:48:43,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-17 11:48:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-07-17 11:48:43,734 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-07-17 11:48:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:48:43,734 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-07-17 11:48:43,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 11:48:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-07-17 11:48:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-17 11:48:43,736 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:48:43,737 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] [2020-07-17 11:48:43,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-17 11:48:43,952 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:48:43,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:48:43,954 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-07-17 11:48:43,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:48:43,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171376519] [2020-07-17 11:48:43,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:48:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,119 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 11:48:44,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171376519] [2020-07-17 11:48:44,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588031608] [2020-07-17 11:48:44,120 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:48:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,154 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-17 11:48:44,156 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:48:44,224 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 11:48:44,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 11:48:44,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-07-17 11:48:44,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047322913] [2020-07-17 11:48:44,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 11:48:44,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:48:44,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 11:48:44,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:48:44,226 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 10 states. [2020-07-17 11:48:44,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:48:44,276 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-07-17 11:48:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 11:48:44,276 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-07-17 11:48:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:48:44,278 INFO L225 Difference]: With dead ends: 46 [2020-07-17 11:48:44,279 INFO L226 Difference]: Without dead ends: 42 [2020-07-17 11:48:44,279 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 [2020-07-17 11:48:44,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-17 11:48:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2020-07-17 11:48:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-17 11:48:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-07-17 11:48:44,288 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 27 [2020-07-17 11:48:44,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:48:44,289 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-07-17 11:48:44,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 11:48:44,289 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-07-17 11:48:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-17 11:48:44,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:48:44,290 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] [2020-07-17 11:48:44,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:48:44,504 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:48:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:48:44,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1725129826, now seen corresponding path program 1 times [2020-07-17 11:48:44,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:48:44,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798524531] [2020-07-17 11:48:44,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:48:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,642 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 11:48:44,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798524531] [2020-07-17 11:48:44,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804420767] [2020-07-17 11:48:44,643 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 [2020-07-17 11:48:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:44,677 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 11:48:44,679 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:48:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 11:48:44,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 11:48:44,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2020-07-17 11:48:44,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538186085] [2020-07-17 11:48:44,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 11:48:44,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:48:44,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 11:48:44,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:48:44,723 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 7 states. [2020-07-17 11:48:44,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:48:44,829 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2020-07-17 11:48:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 11:48:44,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-07-17 11:48:44,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:48:44,831 INFO L225 Difference]: With dead ends: 44 [2020-07-17 11:48:44,831 INFO L226 Difference]: Without dead ends: 40 [2020-07-17 11:48:44,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:48:44,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-17 11:48:44,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2020-07-17 11:48:44,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-07-17 11:48:44,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-07-17 11:48:44,840 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 28 [2020-07-17 11:48:44,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:48:44,841 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-07-17 11:48:44,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 11:48:44,841 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-07-17 11:48:44,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-17 11:48:44,842 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:48:44,843 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] [2020-07-17 11:48:45,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:48:45,051 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:48:45,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:48:45,052 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-07-17 11:48:45,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:48:45,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060754085] [2020-07-17 11:48:45,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:48:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-17 11:48:45,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060754085] [2020-07-17 11:48:45,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698108570] [2020-07-17 11:48:45,144 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 [2020-07-17 11:48:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:48:45,187 INFO L264 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 11:48:45,190 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 11:48:45,275 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-17 11:48:45,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 11:48:45,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-07-17 11:48:45,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935666022] [2020-07-17 11:48:45,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-17 11:48:45,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:48:45,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-17 11:48:45,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:48:45,278 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 12 states. [2020-07-17 11:48:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:48:45,464 INFO L93 Difference]: Finished difference Result 69 states and 101 transitions. [2020-07-17 11:48:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 11:48:45,464 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 39 [2020-07-17 11:48:45,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:48:45,465 INFO L225 Difference]: With dead ends: 69 [2020-07-17 11:48:45,465 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 11:48:45,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-07-17 11:48:45,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 11:48:45,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 11:48:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 11:48:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 11:48:45,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-07-17 11:48:45,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:48:45,468 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 11:48:45,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-17 11:48:45,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 11:48:45,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 11:48:45,676 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 11:48:45,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 11:48:45,834 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 11:48:45,834 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 11:48:45,834 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 11:48:45,835 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 11:48:45,835 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 11:48:45,835 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 11:48:45,835 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2020-07-17 11:48:45,835 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-07-17 11:48:45,835 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 35 42) no Hoare annotation was computed. [2020-07-17 11:48:45,836 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 35 42) no Hoare annotation was computed. [2020-07-17 11:48:45,836 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-07-17 11:48:45,836 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-07-17 11:48:45,836 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= main_~x~0 2) (<= 2 main_~x~0)) [2020-07-17 11:48:45,836 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-07-17 11:48:45,836 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-07-17 11:48:45,836 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-07-17 11:48:45,837 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|)) [2020-07-17 11:48:45,837 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-17 11:48:45,838 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (and (< 1 fibo2_~n) (= fibo2_~n |fibo2_#in~n|)) [2020-07-17 11:48:45,838 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-07-17 11:48:45,838 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-07-17 11:48:45,838 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-07-17 11:48:45,838 INFO L268 CegarLoopResult]: For program point fibo2FINAL(lines 17 25) no Hoare annotation was computed. [2020-07-17 11:48:45,838 INFO L268 CegarLoopResult]: For program point fibo2EXIT(lines 17 25) no Hoare annotation was computed. [2020-07-17 11:48:45,839 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-07-17 11:48:45,839 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (< 1 fibo1_~n) (= fibo1_~n |fibo1_#in~n|)) [2020-07-17 11:48:45,839 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-07-17 11:48:45,839 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))) [2020-07-17 11:48:45,839 INFO L268 CegarLoopResult]: For program point fibo1FINAL(lines 7 15) no Hoare annotation was computed. [2020-07-17 11:48:45,839 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-07-17 11:48:45,840 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-07-17 11:48:45,840 INFO L268 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-07-17 11:48:45,840 INFO L268 CegarLoopResult]: For program point fibo1EXIT(lines 7 15) no Hoare annotation was computed. [2020-07-17 11:48:45,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:48:45 BoogieIcfgContainer [2020-07-17 11:48:45,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:48:45,853 INFO L168 Benchmark]: Toolchain (without parser) took 4028.32 ms. Allocated memory was 144.7 MB in the beginning and 247.5 MB in the end (delta: 102.8 MB). Free memory was 101.6 MB in the beginning and 185.7 MB in the end (delta: -84.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:48:45,858 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 11:48:45,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.90 ms. Allocated memory is still 144.7 MB. Free memory was 101.2 MB in the beginning and 91.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-17 11:48:45,860 INFO L168 Benchmark]: Boogie Preprocessor took 29.67 ms. Allocated memory is still 144.7 MB. Free memory was 91.4 MB in the beginning and 89.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:48:45,861 INFO L168 Benchmark]: RCFGBuilder took 386.48 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 89.7 MB in the beginning and 168.4 MB in the end (delta: -78.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:48:45,862 INFO L168 Benchmark]: TraceAbstraction took 3362.09 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 168.4 MB in the beginning and 185.7 MB in the end (delta: -17.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:48:45,873 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 242.90 ms. Allocated memory is still 144.7 MB. Free memory was 101.2 MB in the beginning and 91.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.67 ms. Allocated memory is still 144.7 MB. Free memory was 91.4 MB in the beginning and 89.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 386.48 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 89.7 MB in the beginning and 168.4 MB in the end (delta: -78.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3362.09 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 168.4 MB in the beginning and 185.7 MB in the end (delta: -17.4 MB). Peak memory consumption was 27.7 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: 3.0s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 0.8s, 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, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 159 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s 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, 0.9s InterpolantComputationTime, 267 NumberOfCodeBlocks, 267 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 15275 SizeOfPredicates, 10 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 35/58 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...