java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-regression/test05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:01:30,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:01:30,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:01:30,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:01:30,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:01:30,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:01:30,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:01:30,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:01:30,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:01:30,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:01:30,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:01:30,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:01:30,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:01:30,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:01:30,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:01:30,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:01:30,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:01:30,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:01:30,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:01:30,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:01:30,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:01:30,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:01:30,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:01:30,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:01:30,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:01:30,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:01:30,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:01:30,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:01:30,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:01:30,524 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:01:30,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:01:30,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:01:30,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:01:30,526 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:01:30,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:01:30,526 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:01:30,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:01:30,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:01:30,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:01:30,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:01:30,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:01:30,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:01:30,527 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:01:30,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:01:30,528 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:01:30,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:01:30,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:01:30,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:01:30,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:01:30,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:01:30,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:30,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:01:30,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:01:30,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:01:30,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:01:30,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:01:30,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:01:30,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:01:30,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:01:30,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:01:30,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:01:30,842 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:01:30,843 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:01:30,844 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test05.c [2019-10-15 01:01:30,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c95db44d/10eb722df062481fbcbc89c75f32e9c8/FLAG74b838120 [2019-10-15 01:01:31,395 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:01:31,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test05.c [2019-10-15 01:01:31,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c95db44d/10eb722df062481fbcbc89c75f32e9c8/FLAG74b838120 [2019-10-15 01:01:31,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c95db44d/10eb722df062481fbcbc89c75f32e9c8 [2019-10-15 01:01:31,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:01:31,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:01:31,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:31,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:01:31,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:01:31,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13252089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:31, skipping insertion in model container [2019-10-15 01:01:31,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:31" (1/1) ... [2019-10-15 01:01:31,811 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:01:31,832 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:01:32,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:32,026 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:01:32,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:32,058 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:01:32,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32 WrapperNode [2019-10-15 01:01:32,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:32,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:01:32,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:01:32,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:01:32,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32" (1/1) ... [2019-10-15 01:01:32,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32" (1/1) ... [2019-10-15 01:01:32,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32" (1/1) ... [2019-10-15 01:01:32,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32" (1/1) ... [2019-10-15 01:01:32,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32" (1/1) ... [2019-10-15 01:01:32,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32" (1/1) ... [2019-10-15 01:01:32,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32" (1/1) ... [2019-10-15 01:01:32,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:01:32,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:01:32,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:01:32,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:01:32,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:01:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:01:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-10-15 01:01:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-10-15 01:01:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:01:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:01:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-10-15 01:01:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:01:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:01:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:01:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-10-15 01:01:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:01:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:01:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:01:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:01:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:01:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:01:32,581 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:01:32,581 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 01:01:32,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:32 BoogieIcfgContainer [2019-10-15 01:01:32,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:01:32,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:01:32,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:01:32,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:01:32,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:01:31" (1/3) ... [2019-10-15 01:01:32,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d264ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:32, skipping insertion in model container [2019-10-15 01:01:32,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:32" (2/3) ... [2019-10-15 01:01:32,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d264ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:32, skipping insertion in model container [2019-10-15 01:01:32,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:32" (3/3) ... [2019-10-15 01:01:32,591 INFO L109 eAbstractionObserver]: Analyzing ICFG test05.c [2019-10-15 01:01:32,600 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:01:32,606 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:01:32,616 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:01:32,639 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:01:32,639 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:01:32,640 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:01:32,640 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:01:32,640 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:01:32,640 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:01:32,640 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:01:32,641 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:01:32,656 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-10-15 01:01:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 01:01:32,662 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:32,663 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:32,665 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:32,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:32,670 INFO L82 PathProgramCache]: Analyzing trace with hash -685779266, now seen corresponding path program 1 times [2019-10-15 01:01:32,677 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:32,677 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782843550] [2019-10-15 01:01:32,677 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:32,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:32,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:32,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:32,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782843550] [2019-10-15 01:01:32,954 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:32,954 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:01:32,955 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367201166] [2019-10-15 01:01:32,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:01:32,961 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:32,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:01:32,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:01:32,979 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2019-10-15 01:01:33,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:33,062 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2019-10-15 01:01:33,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:01:33,064 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-10-15 01:01:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:33,074 INFO L225 Difference]: With dead ends: 36 [2019-10-15 01:01:33,075 INFO L226 Difference]: Without dead ends: 21 [2019-10-15 01:01:33,078 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:01:33,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-15 01:01:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-15 01:01:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-15 01:01:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-10-15 01:01:33,114 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2019-10-15 01:01:33,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:33,114 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-10-15 01:01:33,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:01:33,115 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-10-15 01:01:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-15 01:01:33,116 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:33,116 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:33,116 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:33,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:33,117 INFO L82 PathProgramCache]: Analyzing trace with hash 636648720, now seen corresponding path program 1 times [2019-10-15 01:01:33,117 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:33,117 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349867968] [2019-10-15 01:01:33,117 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:33,118 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:33,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:33,209 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349867968] [2019-10-15 01:01:33,209 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:33,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:01:33,210 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572095421] [2019-10-15 01:01:33,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:01:33,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:33,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:01:33,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:01:33,213 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 5 states. [2019-10-15 01:01:33,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:33,228 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2019-10-15 01:01:33,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:01:33,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-10-15 01:01:33,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:33,230 INFO L225 Difference]: With dead ends: 23 [2019-10-15 01:01:33,231 INFO L226 Difference]: Without dead ends: 21 [2019-10-15 01:01:33,232 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:01:33,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-15 01:01:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-15 01:01:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-15 01:01:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2019-10-15 01:01:33,237 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 19 [2019-10-15 01:01:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:33,238 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2019-10-15 01:01:33,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:01:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2019-10-15 01:01:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-15 01:01:33,239 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:33,239 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:33,240 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:33,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:33,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1738724303, now seen corresponding path program 1 times [2019-10-15 01:01:33,240 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:33,241 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334314942] [2019-10-15 01:01:33,241 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:33,241 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:33,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:33,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334314942] [2019-10-15 01:01:33,601 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:33,601 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:01:33,602 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570350187] [2019-10-15 01:01:33,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:01:33,603 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:33,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:01:33,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:01:33,604 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 10 states. [2019-10-15 01:01:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:33,878 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-10-15 01:01:33,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:01:33,879 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2019-10-15 01:01:33,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:33,881 INFO L225 Difference]: With dead ends: 21 [2019-10-15 01:01:33,881 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:01:33,883 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:01:33,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:01:33,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:01:33,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:01:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:01:33,885 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-10-15 01:01:33,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:33,887 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:01:33,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:01:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:01:33,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:01:33,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:01:33,960 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:33,960 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:33,960 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:33,960 INFO L439 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (and (= |f_#in~a| f_~a) (= |f_#in~p1.base| f_~p1.base) (= f_~p1.offset |f_#in~p1.offset|) (= |f_#in~p2.base| f_~p2.base) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= f_~p2.offset |f_#in~p2.offset|)) [2019-10-15 01:01:33,961 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 17) no Hoare annotation was computed. [2019-10-15 01:01:33,961 INFO L443 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-10-15 01:01:33,961 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 11 18) no Hoare annotation was computed. [2019-10-15 01:01:33,961 INFO L439 ceAbstractionStarter]: At program point fENTRY(lines 11 18) the Hoare annotation is: (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) [2019-10-15 01:01:33,961 INFO L443 ceAbstractionStarter]: For program point fFINAL(lines 11 18) no Hoare annotation was computed. [2019-10-15 01:01:33,961 INFO L443 ceAbstractionStarter]: For program point gEXIT(lines 4 9) no Hoare annotation was computed. [2019-10-15 01:01:33,962 INFO L443 ceAbstractionStarter]: For program point gFINAL(lines 4 9) no Hoare annotation was computed. [2019-10-15 01:01:33,962 INFO L439 ceAbstractionStarter]: At program point gENTRY(lines 4 9) the Hoare annotation is: (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) [2019-10-15 01:01:33,962 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:33,962 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:01:33,963 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:33,963 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:33,963 INFO L439 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#p2~0.base|) |main_~#p2~0.offset|))) (and (= 4 |main_#t~mem4|) (not (= .cse0 |main_~#a~0.base|)) (not (= |main_~#p2~0.base| |main_~#a~0.base|)) (not (= .cse0 |main_~#p1~0.base|)) (not (= |main_~#p1~0.base| |main_~#a~0.base|)))) [2019-10-15 01:01:33,963 INFO L443 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2019-10-15 01:01:33,963 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 20 46) the Hoare annotation is: (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) [2019-10-15 01:01:33,964 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 20 46) no Hoare annotation was computed. [2019-10-15 01:01:33,964 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 20 46) no Hoare annotation was computed. [2019-10-15 01:01:33,964 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-10-15 01:01:33,964 INFO L439 ceAbstractionStarter]: At program point L39(lines 20 46) the Hoare annotation is: false [2019-10-15 01:01:33,964 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 40) no Hoare annotation was computed. [2019-10-15 01:01:33,965 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 36) no Hoare annotation was computed. [2019-10-15 01:01:33,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:01:33 BoogieIcfgContainer [2019-10-15 01:01:33,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:01:33,983 INFO L168 Benchmark]: Toolchain (without parser) took 2190.52 ms. Allocated memory was 134.2 MB in the beginning and 223.3 MB in the end (delta: 89.1 MB). Free memory was 99.2 MB in the beginning and 183.3 MB in the end (delta: -84.0 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,984 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 117.5 MB in the beginning and 117.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.09 ms. Allocated memory is still 134.2 MB. Free memory was 99.0 MB in the beginning and 89.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,987 INFO L168 Benchmark]: Boogie Preprocessor took 109.10 ms. Allocated memory was 134.2 MB in the beginning and 198.7 MB in the end (delta: 64.5 MB). Free memory was 89.3 MB in the beginning and 176.7 MB in the end (delta: -87.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,989 INFO L168 Benchmark]: RCFGBuilder took 414.22 ms. Allocated memory is still 198.7 MB. Free memory was 176.7 MB in the beginning and 157.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:33,991 INFO L168 Benchmark]: TraceAbstraction took 1396.25 ms. Allocated memory was 198.7 MB in the beginning and 223.3 MB in the end (delta: 24.6 MB). Free memory was 156.8 MB in the beginning and 183.3 MB in the end (delta: -26.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:01:34,000 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 117.5 MB in the beginning and 117.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.09 ms. Allocated memory is still 134.2 MB. Free memory was 99.0 MB in the beginning and 89.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.10 ms. Allocated memory was 134.2 MB in the beginning and 198.7 MB in the end (delta: 64.5 MB). Free memory was 89.3 MB in the beginning and 176.7 MB in the end (delta: -87.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.22 ms. Allocated memory is still 198.7 MB. Free memory was 176.7 MB in the beginning and 157.5 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1396.25 ms. Allocated memory was 198.7 MB in the beginning and 223.3 MB in the end (delta: 24.6 MB). Free memory was 156.8 MB in the beginning and 183.3 MB in the end (delta: -26.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 10 SDslu, 150 SDs, 0 SdLazy, 99 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 60 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 6277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...