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/ssh-simplified/s3_srvr_1a.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:00:09,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:00:09,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:00:09,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:00:09,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:00:09,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:00:09,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:00:09,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:00:09,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:00:09,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:00:09,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:00:09,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:00:09,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:00:09,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:00:09,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:00:09,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:00:09,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:00:09,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:00:09,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:00:09,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:00:09,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:00:09,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:00:09,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:00:09,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:00:09,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:00:09,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:00:09,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:00:09,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:00:09,600 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 [2019-09-20 13:00:09,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:00:09,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:00:09,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:00:09,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:00:09,631 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:00:09,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:00:09,632 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:00:09,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:00:09,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:00:09,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:00:09,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:00:09,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:00:09,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:00:09,633 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:00:09,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:00:09,633 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:00:09,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:00:09,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:00:09,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:00:09,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:00:09,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:00:09,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:00:09,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:00:09,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:00:09,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:00:09,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:00:09,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:00:09,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:00:09,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:00:09,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:00:09,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:00:09,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:00:09,686 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:00:09,687 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:00:09,687 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2019-09-20 13:00:09,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d97c95d4b/084a27b8acc24c9cb993b247b58a761c/FLAG2718abf2f [2019-09-20 13:00:10,283 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:00:10,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2019-09-20 13:00:10,293 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d97c95d4b/084a27b8acc24c9cb993b247b58a761c/FLAG2718abf2f [2019-09-20 13:00:10,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d97c95d4b/084a27b8acc24c9cb993b247b58a761c [2019-09-20 13:00:10,628 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:00:10,630 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:00:10,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:00:10,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:00:10,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:00:10,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:00:10" (1/1) ... [2019-09-20 13:00:10,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e7d651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:10, skipping insertion in model container [2019-09-20 13:00:10,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:00:10" (1/1) ... [2019-09-20 13:00:10,647 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:00:10,674 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:00:10,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:00:10,903 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:00:11,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:00:11,053 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:00:11,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11 WrapperNode [2019-09-20 13:00:11,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:00:11,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:00:11,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:00:11,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:00:11,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11" (1/1) ... [2019-09-20 13:00:11,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11" (1/1) ... [2019-09-20 13:00:11,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11" (1/1) ... [2019-09-20 13:00:11,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11" (1/1) ... [2019-09-20 13:00:11,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11" (1/1) ... [2019-09-20 13:00:11,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11" (1/1) ... [2019-09-20 13:00:11,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11" (1/1) ... [2019-09-20 13:00:11,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:00:11,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:00:11,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:00:11,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:00:11,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11" (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 [2019-09-20 13:00:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:00:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:00:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:00:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:00:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-20 13:00:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:00:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-20 13:00:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-20 13:00:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:00:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:00:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:00:11,515 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:00:11,515 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:00:11,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:00:11 BoogieIcfgContainer [2019-09-20 13:00:11,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:00:11,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:00:11,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:00:11,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:00:11,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:00:10" (1/3) ... [2019-09-20 13:00:11,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562e07c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:00:11, skipping insertion in model container [2019-09-20 13:00:11,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:11" (2/3) ... [2019-09-20 13:00:11,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562e07c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:00:11, skipping insertion in model container [2019-09-20 13:00:11,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:00:11" (3/3) ... [2019-09-20 13:00:11,529 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2019-09-20 13:00:11,541 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:00:11,549 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:00:11,563 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:00:11,602 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:00:11,603 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:00:11,603 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:00:11,604 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:00:11,604 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:00:11,604 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:00:11,605 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:00:11,605 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:00:11,605 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:00:11,622 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-09-20 13:00:11,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-09-20 13:00:11,626 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:11,627 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:11,629 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:11,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:11,634 INFO L82 PathProgramCache]: Analyzing trace with hash 2008919768, now seen corresponding path program 1 times [2019-09-20 13:00:11,636 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:11,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:11,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:11,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:11,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:11,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:00:11,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:11,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:11,774 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:11,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:11,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:11,786 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2019-09-20 13:00:11,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:11,939 INFO L93 Difference]: Finished difference Result 136 states and 224 transitions. [2019-09-20 13:00:11,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:11,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-09-20 13:00:11,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:11,953 INFO L225 Difference]: With dead ends: 136 [2019-09-20 13:00:11,953 INFO L226 Difference]: Without dead ends: 83 [2019-09-20 13:00:11,957 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:11,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-09-20 13:00:12,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-09-20 13:00:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-09-20 13:00:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2019-09-20 13:00:12,010 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 8 [2019-09-20 13:00:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:12,011 INFO L475 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2019-09-20 13:00:12,011 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2019-09-20 13:00:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-20 13:00:12,012 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:12,013 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:12,013 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:12,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:12,014 INFO L82 PathProgramCache]: Analyzing trace with hash 2066454160, now seen corresponding path program 1 times [2019-09-20 13:00:12,014 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:12,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:12,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:12,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:00:12,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:12,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:12,059 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:12,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:12,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:12,061 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand 3 states. [2019-09-20 13:00:12,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:12,148 INFO L93 Difference]: Finished difference Result 161 states and 253 transitions. [2019-09-20 13:00:12,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:12,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-09-20 13:00:12,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:12,151 INFO L225 Difference]: With dead ends: 161 [2019-09-20 13:00:12,152 INFO L226 Difference]: Without dead ends: 121 [2019-09-20 13:00:12,153 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:12,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-09-20 13:00:12,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-09-20 13:00:12,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-09-20 13:00:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 184 transitions. [2019-09-20 13:00:12,174 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 184 transitions. Word has length 13 [2019-09-20 13:00:12,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:12,175 INFO L475 AbstractCegarLoop]: Abstraction has 121 states and 184 transitions. [2019-09-20 13:00:12,175 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:12,175 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 184 transitions. [2019-09-20 13:00:12,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-20 13:00:12,176 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:12,177 INFO L407 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:12,177 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:12,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:12,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1216248382, now seen corresponding path program 1 times [2019-09-20 13:00:12,178 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:12,178 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:12,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:12,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:12,223 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:00:12,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:12,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:12,224 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:12,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:12,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:12,225 INFO L87 Difference]: Start difference. First operand 121 states and 184 transitions. Second operand 3 states. [2019-09-20 13:00:12,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:12,355 INFO L93 Difference]: Finished difference Result 237 states and 369 transitions. [2019-09-20 13:00:12,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:12,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-09-20 13:00:12,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:12,362 INFO L225 Difference]: With dead ends: 237 [2019-09-20 13:00:12,362 INFO L226 Difference]: Without dead ends: 159 [2019-09-20 13:00:12,365 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-09-20 13:00:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-09-20 13:00:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-09-20 13:00:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 243 transitions. [2019-09-20 13:00:12,410 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 243 transitions. Word has length 19 [2019-09-20 13:00:12,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:12,410 INFO L475 AbstractCegarLoop]: Abstraction has 159 states and 243 transitions. [2019-09-20 13:00:12,410 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:12,411 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 243 transitions. [2019-09-20 13:00:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-09-20 13:00:12,416 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:12,416 INFO L407 BasicCegarLoop]: trace histogram [4, 3, 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] [2019-09-20 13:00:12,417 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:12,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:12,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1623728883, now seen corresponding path program 1 times [2019-09-20 13:00:12,418 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:12,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:12,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:12,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:12,485 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-20 13:00:12,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:12,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:12,486 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:12,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:12,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:12,487 INFO L87 Difference]: Start difference. First operand 159 states and 243 transitions. Second operand 3 states. [2019-09-20 13:00:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:12,662 INFO L93 Difference]: Finished difference Result 371 states and 583 transitions. [2019-09-20 13:00:12,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:12,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-09-20 13:00:12,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:12,666 INFO L225 Difference]: With dead ends: 371 [2019-09-20 13:00:12,666 INFO L226 Difference]: Without dead ends: 217 [2019-09-20 13:00:12,667 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:12,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-09-20 13:00:12,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 211. [2019-09-20 13:00:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-09-20 13:00:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 295 transitions. [2019-09-20 13:00:12,696 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 295 transitions. Word has length 34 [2019-09-20 13:00:12,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:12,697 INFO L475 AbstractCegarLoop]: Abstraction has 211 states and 295 transitions. [2019-09-20 13:00:12,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 295 transitions. [2019-09-20 13:00:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-20 13:00:12,700 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:12,701 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:12,701 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:12,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1694730092, now seen corresponding path program 1 times [2019-09-20 13:00:12,702 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:12,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:12,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:12,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-20 13:00:12,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:12,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:12,779 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:12,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:12,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:12,780 INFO L87 Difference]: Start difference. First operand 211 states and 295 transitions. Second operand 3 states. [2019-09-20 13:00:12,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:12,855 INFO L93 Difference]: Finished difference Result 419 states and 592 transitions. [2019-09-20 13:00:12,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:12,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-09-20 13:00:12,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:12,857 INFO L225 Difference]: With dead ends: 419 [2019-09-20 13:00:12,857 INFO L226 Difference]: Without dead ends: 264 [2019-09-20 13:00:12,859 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:12,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-09-20 13:00:12,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2019-09-20 13:00:12,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-09-20 13:00:12,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 369 transitions. [2019-09-20 13:00:12,881 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 369 transitions. Word has length 48 [2019-09-20 13:00:12,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:12,882 INFO L475 AbstractCegarLoop]: Abstraction has 262 states and 369 transitions. [2019-09-20 13:00:12,882 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:12,882 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 369 transitions. [2019-09-20 13:00:12,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:00:12,885 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:12,885 INFO L407 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:12,885 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:12,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:12,886 INFO L82 PathProgramCache]: Analyzing trace with hash 365198397, now seen corresponding path program 1 times [2019-09-20 13:00:12,886 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:12,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:12,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:12,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-20 13:00:12,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:12,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:12,928 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:12,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:12,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:12,929 INFO L87 Difference]: Start difference. First operand 262 states and 369 transitions. Second operand 3 states. [2019-09-20 13:00:13,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:13,022 INFO L93 Difference]: Finished difference Result 527 states and 756 transitions. [2019-09-20 13:00:13,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:13,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-20 13:00:13,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:13,025 INFO L225 Difference]: With dead ends: 527 [2019-09-20 13:00:13,025 INFO L226 Difference]: Without dead ends: 192 [2019-09-20 13:00:13,026 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:13,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2019-09-20 13:00:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2019-09-20 13:00:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-09-20 13:00:13,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 248 transitions. [2019-09-20 13:00:13,036 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 248 transitions. Word has length 51 [2019-09-20 13:00:13,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:13,037 INFO L475 AbstractCegarLoop]: Abstraction has 189 states and 248 transitions. [2019-09-20 13:00:13,037 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 248 transitions. [2019-09-20 13:00:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-20 13:00:13,041 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:13,041 INFO L407 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2019-09-20 13:00:13,041 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:13,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:13,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1939547864, now seen corresponding path program 1 times [2019-09-20 13:00:13,042 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:13,042 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:13,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:13,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:13,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-09-20 13:00:13,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:13,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:13,128 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:13,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:13,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:13,129 INFO L87 Difference]: Start difference. First operand 189 states and 248 transitions. Second operand 3 states. [2019-09-20 13:00:13,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:13,154 INFO L93 Difference]: Finished difference Result 310 states and 379 transitions. [2019-09-20 13:00:13,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:13,155 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2019-09-20 13:00:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:13,156 INFO L225 Difference]: With dead ends: 310 [2019-09-20 13:00:13,156 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:00:13,157 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:00:13,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:00:13,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:00:13,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:00:13,158 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2019-09-20 13:00:13,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:13,158 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:00:13,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:13,158 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:00:13,158 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:00:13,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 13:00:13,397 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-20 13:00:13,397 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:00:13,397 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:00:13,398 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 13:00:13,398 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 13:00:13,398 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 13:00:13,398 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 218) no Hoare annotation was computed. [2019-09-20 13:00:13,399 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 186) no Hoare annotation was computed. [2019-09-20 13:00:13,399 INFO L443 ceAbstractionStarter]: For program point L61(lines 61 190) no Hoare annotation was computed. [2019-09-20 13:00:13,399 INFO L443 ceAbstractionStarter]: For program point L152-1(lines 75 184) no Hoare annotation was computed. [2019-09-20 13:00:13,399 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 194) no Hoare annotation was computed. [2019-09-20 13:00:13,399 INFO L443 ceAbstractionStarter]: For program point L86-1(lines 75 184) no Hoare annotation was computed. [2019-09-20 13:00:13,400 INFO L439 ceAbstractionStarter]: At program point L177(lines 23 212) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8640 main_~s__state~0) .cse0 (not (= 0 main_~s__hit~0))) (<= main_~blastFlag~0 2) (and .cse0 (<= 8672 main_~s__state~0)))) [2019-09-20 13:00:13,400 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 198) no Hoare annotation was computed. [2019-09-20 13:00:13,400 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 140) no Hoare annotation was computed. [2019-09-20 13:00:13,400 INFO L439 ceAbstractionStarter]: At program point L70(lines 69 186) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (and .cse0 (<= main_~blastFlag~0 2)))) [2019-09-20 13:00:13,400 INFO L443 ceAbstractionStarter]: For program point L37(lines 37 202) no Hoare annotation was computed. [2019-09-20 13:00:13,400 INFO L439 ceAbstractionStarter]: At program point L62(lines 61 190) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,401 INFO L439 ceAbstractionStarter]: At program point L54(lines 53 194) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,401 INFO L439 ceAbstractionStarter]: At program point L46(lines 45 198) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,401 INFO L443 ceAbstractionStarter]: For program point L79-1(lines 79 81) no Hoare annotation was computed. [2019-09-20 13:00:13,401 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 218) no Hoare annotation was computed. [2019-09-20 13:00:13,401 INFO L443 ceAbstractionStarter]: For program point L170-1(lines 75 184) no Hoare annotation was computed. [2019-09-20 13:00:13,402 INFO L439 ceAbstractionStarter]: At program point L38(lines 37 202) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,402 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 205) no Hoare annotation was computed. [2019-09-20 13:00:13,402 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 218) the Hoare annotation is: true [2019-09-20 13:00:13,403 INFO L439 ceAbstractionStarter]: At program point L121(lines 114 123) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,403 INFO L439 ceAbstractionStarter]: At program point L113(lines 106 124) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,403 INFO L443 ceAbstractionStarter]: For program point L163-1(lines 163 165) no Hoare annotation was computed. [2019-09-20 13:00:13,403 INFO L439 ceAbstractionStarter]: At program point L31(lines 30 205) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,403 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 124) no Hoare annotation was computed. [2019-09-20 13:00:13,403 INFO L443 ceAbstractionStarter]: For program point L73(lines 73 184) no Hoare annotation was computed. [2019-09-20 13:00:13,403 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 188) no Hoare annotation was computed. [2019-09-20 13:00:13,404 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 192) no Hoare annotation was computed. [2019-09-20 13:00:13,404 INFO L443 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-09-20 13:00:13,404 INFO L446 ceAbstractionStarter]: At program point L214(lines 9 218) the Hoare annotation is: true [2019-09-20 13:00:13,404 INFO L443 ceAbstractionStarter]: For program point L115(lines 115 119) no Hoare annotation was computed. [2019-09-20 13:00:13,404 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 196) no Hoare annotation was computed. [2019-09-20 13:00:13,404 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 175) no Hoare annotation was computed. [2019-09-20 13:00:13,404 INFO L443 ceAbstractionStarter]: For program point L107(lines 107 111) no Hoare annotation was computed. [2019-09-20 13:00:13,405 INFO L439 ceAbstractionStarter]: At program point L74(lines 73 184) the Hoare annotation is: (and (<= main_~blastFlag~0 3) (<= 8672 main_~s__state~0)) [2019-09-20 13:00:13,405 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 200) no Hoare annotation was computed. [2019-09-20 13:00:13,405 INFO L439 ceAbstractionStarter]: At program point L66(lines 65 188) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (and .cse0 (<= main_~blastFlag~0 2)))) [2019-09-20 13:00:13,405 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 204) no Hoare annotation was computed. [2019-09-20 13:00:13,405 INFO L439 ceAbstractionStarter]: At program point L58(lines 57 192) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,405 INFO L439 ceAbstractionStarter]: At program point L50(lines 49 196) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,407 INFO L439 ceAbstractionStarter]: At program point L174(lines 9 218) the Hoare annotation is: false [2019-09-20 13:00:13,408 INFO L439 ceAbstractionStarter]: At program point L42(lines 41 200) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,408 INFO L439 ceAbstractionStarter]: At program point L34(lines 33 204) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-20 13:00:13,408 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 216) no Hoare annotation was computed. [2019-09-20 13:00:13,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:00:13 BoogieIcfgContainer [2019-09-20 13:00:13,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:00:13,438 INFO L168 Benchmark]: Toolchain (without parser) took 2806.85 ms. Allocated memory was 130.0 MB in the beginning and 216.0 MB in the end (delta: 86.0 MB). Free memory was 86.2 MB in the beginning and 106.2 MB in the end (delta: -20.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:13,439 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:00:13,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.98 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 85.8 MB in the beginning and 173.4 MB in the end (delta: -87.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:13,443 INFO L168 Benchmark]: Boogie Preprocessor took 35.60 ms. Allocated memory is still 197.7 MB. Free memory was 173.4 MB in the beginning and 172.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:13,444 INFO L168 Benchmark]: RCFGBuilder took 427.18 ms. Allocated memory is still 197.7 MB. Free memory was 171.5 MB in the beginning and 152.9 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:13,446 INFO L168 Benchmark]: TraceAbstraction took 1916.62 ms. Allocated memory was 197.7 MB in the beginning and 216.0 MB in the end (delta: 18.4 MB). Free memory was 152.3 MB in the beginning and 106.2 MB in the end (delta: 46.1 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:13,455 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 422.98 ms. Allocated memory was 130.0 MB in the beginning and 197.7 MB in the end (delta: 67.6 MB). Free memory was 85.8 MB in the beginning and 173.4 MB in the end (delta: -87.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.60 ms. Allocated memory is still 197.7 MB. Free memory was 173.4 MB in the beginning and 172.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 427.18 ms. Allocated memory is still 197.7 MB. Free memory was 171.5 MB in the beginning and 152.9 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1916.62 ms. Allocated memory was 197.7 MB in the beginning and 216.0 MB in the end (delta: 18.4 MB). Free memory was 152.3 MB in the beginning and 106.2 MB in the end (delta: 46.1 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 216]: 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: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || (8640 <= s__state && blastFlag <= 2) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || (8640 <= s__state && blastFlag <= 2) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || blastFlag <= 2) || (blastFlag <= 3 && 8672 <= s__state) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 50 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 457 SDtfs, 250 SDslu, 321 SDs, 0 SdLazy, 196 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 86 NumberOfFragments, 106 HoareAnnotationTreeSize, 21 FomulaSimplifications, 585 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 25301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 202/202 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...