java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:17:20,432 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:17:20,434 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:17:20,446 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:17:20,446 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:17:20,448 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:17:20,449 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:17:20,451 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:17:20,452 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:17:20,453 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:17:20,454 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:17:20,454 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:17:20,455 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:17:20,456 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:17:20,457 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:17:20,458 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:17:20,459 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:17:20,461 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:17:20,463 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:17:20,465 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:17:20,466 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:17:20,467 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:17:20,473 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:17:20,485 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:17:20,485 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:17:20,487 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:17:20,488 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:17:20,488 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:17:20,516 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:17:20,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:17:20,518 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:17:20,518 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:17:20,519 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:17:20,521 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:17:20,521 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:17:20,522 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:17:20,522 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:17:20,522 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:17:20,522 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:17:20,522 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:17:20,523 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:17:20,524 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:17:20,524 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:17:20,524 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:17:20,524 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:17:20,524 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:17:20,525 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:17:20,525 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:17:20,525 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:17:20,525 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:17:20,525 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:17:20,526 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:17:20,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:17:20,526 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:17:20,526 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:17:20,526 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:17:20,527 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:17:20,528 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:17:20,528 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:17:20,529 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:17:20,529 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:17:20,529 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:17:20,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:17:20,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:17:20,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:17:20,601 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:17:20,602 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:17:20,602 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label25_false-unreach-call.c [2018-10-24 18:17:20,667 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f187d3609/fe30b1aa15da4990b630f6231f245dda/FLAG805a119de [2018-10-24 18:17:21,498 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:17:21,499 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label25_false-unreach-call.c [2018-10-24 18:17:21,532 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f187d3609/fe30b1aa15da4990b630f6231f245dda/FLAG805a119de [2018-10-24 18:17:21,552 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f187d3609/fe30b1aa15da4990b630f6231f245dda [2018-10-24 18:17:21,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:17:21,567 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:17:21,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:17:21,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:17:21,573 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:17:21,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:17:21" (1/1) ... [2018-10-24 18:17:21,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769a0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:21, skipping insertion in model container [2018-10-24 18:17:21,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:17:21" (1/1) ... [2018-10-24 18:17:21,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:17:21,760 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:17:23,134 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:17:23,140 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:17:23,757 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:17:23,792 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:17:23,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23 WrapperNode [2018-10-24 18:17:23,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:17:23,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:17:23,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:17:23,795 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:17:23,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... [2018-10-24 18:17:23,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... [2018-10-24 18:17:24,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:17:24,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:17:24,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:17:24,280 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:17:24,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... [2018-10-24 18:17:24,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... [2018-10-24 18:17:24,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... [2018-10-24 18:17:24,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... [2018-10-24 18:17:24,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... [2018-10-24 18:17:24,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... [2018-10-24 18:17:24,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... [2018-10-24 18:17:24,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:17:24,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:17:24,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:17:24,532 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:17:24,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 18:17:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:17:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:17:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 18:17:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 18:17:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 18:17:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 18:17:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:17:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:17:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:17:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:17:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:17:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:17:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:17:24,605 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:17:36,603 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:17:36,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:17:36 BoogieIcfgContainer [2018-10-24 18:17:36,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:17:36,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:17:36,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:17:36,608 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:17:36,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:17:21" (1/3) ... [2018-10-24 18:17:36,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52892750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:17:36, skipping insertion in model container [2018-10-24 18:17:36,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:17:23" (2/3) ... [2018-10-24 18:17:36,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52892750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:17:36, skipping insertion in model container [2018-10-24 18:17:36,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:17:36" (3/3) ... [2018-10-24 18:17:36,612 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label25_false-unreach-call.c [2018-10-24 18:17:36,622 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:17:36,632 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:17:36,649 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:17:36,706 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:17:36,706 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:17:36,707 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:17:36,707 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:17:36,707 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:17:36,707 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:17:36,707 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:17:36,707 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:17:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-24 18:17:36,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-24 18:17:36,762 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:17:36,763 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:17:36,766 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:17:36,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:17:36,773 INFO L82 PathProgramCache]: Analyzing trace with hash -82660212, now seen corresponding path program 1 times [2018-10-24 18:17:36,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:17:36,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:17:36,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:17:36,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:17:36,834 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:17:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:17:37,170 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:17:37,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:17:37,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:17:37,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:17:37,282 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:17:37,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:17:37,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:17:37,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:17:37,313 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-10-24 18:17:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:17:45,825 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-10-24 18:17:45,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:17:45,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-10-24 18:17:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:17:45,865 INFO L225 Difference]: With dead ends: 2446 [2018-10-24 18:17:45,866 INFO L226 Difference]: Without dead ends: 1604 [2018-10-24 18:17:45,878 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:17:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-10-24 18:17:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-10-24 18:17:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-10-24 18:17:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3021 transitions. [2018-10-24 18:17:46,059 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3021 transitions. Word has length 24 [2018-10-24 18:17:46,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:17:46,060 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 3021 transitions. [2018-10-24 18:17:46,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:17:46,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3021 transitions. [2018-10-24 18:17:46,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-24 18:17:46,071 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:17:46,072 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:17:46,072 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:17:46,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:17:46,075 INFO L82 PathProgramCache]: Analyzing trace with hash -664739510, now seen corresponding path program 1 times [2018-10-24 18:17:46,075 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:17:46,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:17:46,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:17:46,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:17:46,077 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:17:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:17:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:17:46,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:17:46,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:17:46,355 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:17:46,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:17:46,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:17:46,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:17:46,358 INFO L87 Difference]: Start difference. First operand 1604 states and 3021 transitions. Second operand 5 states. [2018-10-24 18:18:01,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:18:01,603 INFO L93 Difference]: Finished difference Result 4873 states and 9189 transitions. [2018-10-24 18:18:01,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:18:01,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2018-10-24 18:18:01,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:18:01,627 INFO L225 Difference]: With dead ends: 4873 [2018-10-24 18:18:01,627 INFO L226 Difference]: Without dead ends: 3275 [2018-10-24 18:18:01,633 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:18:01,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2018-10-24 18:18:01,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3241. [2018-10-24 18:18:01,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2018-10-24 18:18:01,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5451 transitions. [2018-10-24 18:18:01,770 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5451 transitions. Word has length 102 [2018-10-24 18:18:01,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:18:01,771 INFO L481 AbstractCegarLoop]: Abstraction has 3241 states and 5451 transitions. [2018-10-24 18:18:01,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:18:01,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5451 transitions. [2018-10-24 18:18:01,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-24 18:18:01,779 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:18:01,780 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:18:01,780 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:18:01,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:18:01,781 INFO L82 PathProgramCache]: Analyzing trace with hash 2031355331, now seen corresponding path program 1 times [2018-10-24 18:18:01,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:18:01,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:18:01,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:18:01,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:18:01,783 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:18:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:18:02,088 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:18:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:18:02,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:18:02,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:18:02,134 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:18:02,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:18:02,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:18:02,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:18:02,136 INFO L87 Difference]: Start difference. First operand 3241 states and 5451 transitions. Second operand 6 states. [2018-10-24 18:18:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:18:15,862 INFO L93 Difference]: Finished difference Result 9767 states and 16545 transitions. [2018-10-24 18:18:15,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:18:15,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-10-24 18:18:15,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:18:15,897 INFO L225 Difference]: With dead ends: 9767 [2018-10-24 18:18:15,898 INFO L226 Difference]: Without dead ends: 6532 [2018-10-24 18:18:15,910 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:18:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2018-10-24 18:18:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 6456. [2018-10-24 18:18:16,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6456 states. [2018-10-24 18:18:16,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6456 states to 6456 states and 10247 transitions. [2018-10-24 18:18:16,103 INFO L78 Accepts]: Start accepts. Automaton has 6456 states and 10247 transitions. Word has length 115 [2018-10-24 18:18:16,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:18:16,104 INFO L481 AbstractCegarLoop]: Abstraction has 6456 states and 10247 transitions. [2018-10-24 18:18:16,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:18:16,104 INFO L276 IsEmpty]: Start isEmpty. Operand 6456 states and 10247 transitions. [2018-10-24 18:18:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-24 18:18:16,115 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:18:16,115 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:18:16,115 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:18:16,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:18:16,116 INFO L82 PathProgramCache]: Analyzing trace with hash -381568314, now seen corresponding path program 1 times [2018-10-24 18:18:16,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:18:16,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:18:16,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:18:16,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:18:16,119 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:18:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:18:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:18:16,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:18:16,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:18:16,353 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:18:16,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:18:16,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:18:16,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:18:16,354 INFO L87 Difference]: Start difference. First operand 6456 states and 10247 transitions. Second operand 6 states. [2018-10-24 18:18:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:18:25,196 INFO L93 Difference]: Finished difference Result 18070 states and 29703 transitions. [2018-10-24 18:18:25,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:18:25,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-10-24 18:18:25,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:18:25,259 INFO L225 Difference]: With dead ends: 18070 [2018-10-24 18:18:25,260 INFO L226 Difference]: Without dead ends: 11620 [2018-10-24 18:18:25,283 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:18:25,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11620 states. [2018-10-24 18:18:25,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 11438. [2018-10-24 18:18:25,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11438 states. [2018-10-24 18:18:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11438 states to 11438 states and 17980 transitions. [2018-10-24 18:18:25,727 INFO L78 Accepts]: Start accepts. Automaton has 11438 states and 17980 transitions. Word has length 120 [2018-10-24 18:18:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:18:25,727 INFO L481 AbstractCegarLoop]: Abstraction has 11438 states and 17980 transitions. [2018-10-24 18:18:25,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:18:25,728 INFO L276 IsEmpty]: Start isEmpty. Operand 11438 states and 17980 transitions. [2018-10-24 18:18:25,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-10-24 18:18:25,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:18:25,733 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:18:25,733 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:18:25,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:18:25,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1903682250, now seen corresponding path program 1 times [2018-10-24 18:18:25,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:18:25,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:18:25,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:18:25,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:18:25,736 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:18:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:18:26,250 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:18:26,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:18:26,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:18:26,251 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:18:26,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:18:26,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:18:26,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:18:26,255 INFO L87 Difference]: Start difference. First operand 11438 states and 17980 transitions. Second operand 6 states. [2018-10-24 18:19:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:19:00,390 INFO L93 Difference]: Finished difference Result 46378 states and 82596 transitions. [2018-10-24 18:19:00,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 18:19:00,391 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-10-24 18:19:00,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:19:00,574 INFO L225 Difference]: With dead ends: 46378 [2018-10-24 18:19:00,574 INFO L226 Difference]: Without dead ends: 34946 [2018-10-24 18:19:00,672 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 18:19:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34946 states. [2018-10-24 18:19:01,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34946 to 34659. [2018-10-24 18:19:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34659 states. [2018-10-24 18:19:01,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34659 states to 34659 states and 54005 transitions. [2018-10-24 18:19:01,618 INFO L78 Accepts]: Start accepts. Automaton has 34659 states and 54005 transitions. Word has length 128 [2018-10-24 18:19:01,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:19:01,619 INFO L481 AbstractCegarLoop]: Abstraction has 34659 states and 54005 transitions. [2018-10-24 18:19:01,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:19:01,619 INFO L276 IsEmpty]: Start isEmpty. Operand 34659 states and 54005 transitions. [2018-10-24 18:19:01,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-24 18:19:01,621 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:19:01,621 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:19:01,621 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:19:01,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:19:01,622 INFO L82 PathProgramCache]: Analyzing trace with hash 367290207, now seen corresponding path program 1 times [2018-10-24 18:19:01,622 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:19:01,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:19:01,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:19:01,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:19:01,623 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:19:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:19:01,889 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:19:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:19:02,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:19:02,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:19:02,265 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:19:02,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:19:02,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:19:02,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:19:02,267 INFO L87 Difference]: Start difference. First operand 34659 states and 54005 transitions. Second operand 6 states. [2018-10-24 18:19:11,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:19:11,385 INFO L93 Difference]: Finished difference Result 84446 states and 141391 transitions. [2018-10-24 18:19:11,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:19:11,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-10-24 18:19:11,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:19:11,614 INFO L225 Difference]: With dead ends: 84446 [2018-10-24 18:19:11,614 INFO L226 Difference]: Without dead ends: 49793 [2018-10-24 18:19:11,701 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:19:11,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49793 states. [2018-10-24 18:19:12,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49793 to 49421. [2018-10-24 18:19:12,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49421 states. [2018-10-24 18:19:13,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49421 states to 49421 states and 75385 transitions. [2018-10-24 18:19:13,473 INFO L78 Accepts]: Start accepts. Automaton has 49421 states and 75385 transitions. Word has length 149 [2018-10-24 18:19:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:19:13,474 INFO L481 AbstractCegarLoop]: Abstraction has 49421 states and 75385 transitions. [2018-10-24 18:19:13,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:19:13,474 INFO L276 IsEmpty]: Start isEmpty. Operand 49421 states and 75385 transitions. [2018-10-24 18:19:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-10-24 18:19:13,477 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:19:13,477 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:19:13,478 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:19:13,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:19:13,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1017513474, now seen corresponding path program 1 times [2018-10-24 18:19:13,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:19:13,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:19:13,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:19:13,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:19:13,482 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:19:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:19:13,762 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:19:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 18:19:13,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:19:13,844 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:19:13,845 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 171 with the following transitions: [2018-10-24 18:19:13,847 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1959], [1961], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-24 18:19:13,939 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:19:13,939 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:19:19,219 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:19:41,393 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:19:41,395 INFO L272 AbstractInterpreter]: Visited 153 different actions 446 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 18:19:41,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:19:41,439 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:19:45,298 INFO L232 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 79.93% of their original sizes. [2018-10-24 18:19:45,298 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:20:00,496 INFO L413 sIntCurrentIteration]: We have 169 unified AI predicates [2018-10-24 18:20:00,497 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:20:00,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:20:00,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-10-24 18:20:00,498 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:20:00,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 18:20:00,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 18:20:00,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-10-24 18:20:00,499 INFO L87 Difference]: Start difference. First operand 49421 states and 75385 transitions. Second operand 16 states. Received shutdown request... [2018-10-24 18:21:18,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 18:21:18,442 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:21:18,447 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:21:18,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:21:18 BoogieIcfgContainer [2018-10-24 18:21:18,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:21:18,449 INFO L168 Benchmark]: Toolchain (without parser) took 236883.27 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -755.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 18:21:18,454 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:21:18,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2225.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:21:18,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 485.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 794.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:21:18,456 INFO L168 Benchmark]: Boogie Preprocessor took 251.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:21:18,457 INFO L168 Benchmark]: RCFGBuilder took 12072.32 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 172.0 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -161.4 MB). Peak memory consumption was 662.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:21:18,458 INFO L168 Benchmark]: TraceAbstraction took 221842.63 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 216.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 18:21:18,464 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2225.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 485.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 794.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 251.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12072.32 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 172.0 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -161.4 MB). Peak memory consumption was 662.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221842.63 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 216.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 63). Cancelled while BasicCegarLoop was constructing difference of abstraction (49421states) and FLOYD_HOARE automaton (currently 10 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (666 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 221.7s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 168.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 825 SDtfs, 19340 SDslu, 959 SDs, 0 SdLazy, 32255 SolverSat, 8386 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 99.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 231 GetRequests, 165 SyntacticMatches, 10 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 18.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49421occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 27.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9947291761492943 AbsIntWeakeningRatio, 0.1242603550295858 AbsIntAvgWeakeningVarsNumRemoved, 22.875739644970412 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 951 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 808 NumberOfCodeBlocks, 808 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 801 ConstructedInterpolants, 0 QuantifiedInterpolants, 462343 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 89/102 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown